----- Nội dung dịch tự động từ ảnh -----
6. No river in the world is longer than the Nile.
→The Nile
7. Mount Everest is the highest mountain in the world.
→No mountain
8. This is the first time I have ever met such a pretty girl.
→ She is.
9. He works much. He feels tired.
→ The more
*******
10. This computer works better than that one.
→ That computer.
11. The apartment is big. The rent is high.
→The bigger.
12. We set off soon. We will arrive soon.
→ The sooner.
13. The joke is good. The laughter is loud.
→The better
*******