Trắc nghiệm Tiếng Anh 11 Unit 6 (Smart World có đáp án): Reading & Writing

    Yellowstone National Park, the first US National Park, was (1) ______ in 1872. The park covers an area of about 3,500 square miles in three states of Wyoming, Montana and Idaho, which makes it one of the (2) ______ national parks in the USA.

    Yellowstone is a great place to see some of the most outstanding features on Earth. The park is home to more than 200 (3) ______ species of animals, including bears and eagles. These wild animals are the main attraction of the park. Yellowstone is also famous for its impressive hot springs, resulting from water contacting hot rock underground and then rising to the Earth’s surface in different colors.

    Today, Yellowstone remains one of the country’s most popular national parks, attracting millions of (4) ______ every year. It is a favorite destination for those who love to explore the nature and to experience outdoor (5) ______, such as hiking, bird-watching or horse-riding. For other people who want a quiet moment or need to sit quietly, watching the sunset, Yellowstone offers different choices for them to simply slow down and relax in nature.

    Yellowstone National Park, the first US National Park, was (1) ______ in 1872. The park covers an area of about 3,500 square miles in three states of Wyoming, Montana and Idaho, which makes it one of the (2) ______ national parks in the USA.

    Yellowstone is a great place to see some of the most outstanding features on Earth. The park is home to more than 200 (3) ______ species of animals, including bears and eagles. These wild animals are the main attraction of the park. Yellowstone is also famous for its impressive hot springs, resulting from water contacting hot rock underground and then rising to the Earth’s surface in different colors.

    Today, Yellowstone remains one of the country’s most popular national parks, attracting millions of (4) ______ every year. It is a favorite destination for those who love to explore the nature and to experience outdoor (5) ______, such as hiking, bird-watching or horse-riding. For other people who want a quiet moment or need to sit quietly, watching the sunset, Yellowstone offers different choices for them to simply slow down and relax in nature.

    Yellowstone National Park, the first US National Park, was (1) ______ in 1872. The park covers an area of about 3,500 square miles in three states of Wyoming, Montana and Idaho, which makes it one of the (2) ______ national parks in the USA.

    Yellowstone is a great place to see some of the most outstanding features on Earth. The park is home to more than 200 (3) ______ species of animals, including bears and eagles. These wild animals are the main attraction of the park. Yellowstone is also famous for its impressive hot springs, resulting from water contacting hot rock underground and then rising to the Earth’s surface in different colors.

    Today, Yellowstone remains one of the country’s most popular national parks, attracting millions of (4) ______ every year. It is a favorite destination for those who love to explore the nature and to experience outdoor (5) ______, such as hiking, bird-watching or horse-riding. For other people who want a quiet moment or need to sit quietly, watching the sunset, Yellowstone offers different choices for them to simply slow down and relax in nature.

    Yellowstone National Park, the first US National Park, was (1) ______ in 1872. The park covers an area of about 3,500 square miles in three states of Wyoming, Montana and Idaho, which makes it one of the (2) ______ national parks in the USA.

    Yellowstone is a great place to see some of the most outstanding features on Earth. The park is home to more than 200 (3) ______ species of animals, including bears and eagles. These wild animals are the main attraction of the park. Yellowstone is also famous for its impressive hot springs, resulting from water contacting hot rock underground and then rising to the Earth’s surface in different colors.

    Today, Yellowstone remains one of the country’s most popular national parks, attracting millions of (4) ______ every year. It is a favorite destination for those who love to explore the nature and to experience outdoor (5) ______, such as hiking, bird-watching or horse-riding. For other people who want a quiet moment or need to sit quietly, watching the sunset, Yellowstone offers different choices for them to simply slow down and relax in nature.

    Yellowstone National Park, the first US National Park, was (1) ______ in 1872. The park covers an area of about 3,500 square miles in three states of Wyoming, Montana and Idaho, which makes it one of the (2) ______ national parks in the USA.

    Yellowstone is a great place to see some of the most outstanding features on Earth. The park is home to more than 200 (3) ______ species of animals, including bears and eagles. These wild animals are the main attraction of the park. Yellowstone is also famous for its impressive hot springs, resulting from water contacting hot rock underground and then rising to the Earth’s surface in different colors.

    Today, Yellowstone remains one of the country’s most popular national parks, attracting millions of (4) ______ every year. It is a favorite destination for those who love to explore the nature and to experience outdoor (5) ______, such as hiking, bird-watching or horse-riding. For other people who want a quiet moment or need to sit quietly, watching the sunset, Yellowstone offers different choices for them to simply slow down and relax in nature.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.

Son Doong Cave

    Son Doong Cave is located in the limestone mountains of the UNESCO-listed Phong Nha – Ke Bang National Park. It was first discovered in 1991 by a local man and became internationally famous in 2009 when a group of scientists from the British Cave Research Association explored it.

    Son Doong Cave was created from 2 to 5 million years ago while a river flowed through the limestone mountain area. The water eroded the limestone and created long underground tunnels. The cave is over 200 m high, 200 m wide and at least 9 km long.

    Son Doong Cave consists of two entrances, which is unique among other explored caves in Phong Nha – Ke Bang National Park. Having explored the cave, the scientists were surprised at the spectacular scenery of numerous columns of more than 70 meters high. Son Doong Cave is the largest cave passage in the world. International explorers were amazed to see that this fascinating cave system has its very own rainforest. Deep inside the cave exists a tropical jungle named “Garden of Eden” by the explorers. This is where unique species of plants and trees can be found. Also, the cave has a 2.5-kilometer underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of thousands of small, rare limestone cave pearls in dried ponds, making it an incredible feature of the cave.

    Son Doong Cave was opened to the public in 2013. A local adventure tour company Oxalis has been taking a limited number of tourists per year on four-day expeditions into Son Doong Cave since then.