III/
1. Sahara is the largest desert in the world.
2. Spring is the nicest season in the year.
3. The USA is bigger than English.
4. Whales is the most intelligent animal in the world.
5. My bag is heavier than yours.
6. That girl is more beautiful than this one.
7. Today is the happiest day in my life.
8. Hoa is the best student in our class.
9. Is Minh the youngest person in his family?
10. Hoang is the tallest boy in his school.
11. His school is farther than hers.
12. This question is more complicated than that one.
13. Summer is the hottest season in the year.
14. Reading books is more intelligent than listening to music.
Mình thấy đề bài IV khá lạ, chưa bao giờ gặp, nó kiểu như tìm từ đồng nghĩa để điền vào chứ không phải là điền từ hoàn chỉnh theo từ đã cho sẵn.