Câu hỏi:

Read the text about nature in Vietnam. Circle the correct options.

    There are many must-see places in the world, and Vietnam is one of the destinations that foreign visitors can't miss out on. The country is well-known (18) ______ its natural wonders, including rainforests, beaches, waterfalls, caves, mountains, and a lot more. Here are some places you shouldn't miss when you are in this Southeast Asian country.

    First, the Côn Đảo Islands are worth (19) ______ for their wonderful beaches and exciting activities such as snorkeling, scuba-diving, swimming, and turtle-watching, especially if you go there from June to September when the weather is nice. Besides, you can explore many historical sites here and learn more about Vietnam's rich history.

    Second, Sơn Đoòng Cave is an exciting destination for people (20) ______ want to discover its spectacular landscape. Trekking through the world's largest natural limestone cave promises to be an amazing experience. (21) ______, you must visit the cave in a tour group led by cave experts and tour guides.

    Lastly, Hạ Long Bay is a must-visit destination because of its (22) ______ islands. It became even more famous when it was named one of the new Seven Natural Wonders of the World. You can enjoy various activities such as hiking, rock climbing, or kayaking while admiring the spectacular outcrops there.

The country is well-known (18) ______ its natural wonders, including rainforests, beaches, waterfalls, caves, mountains, and a lot more.