Bonjour pourriez vous m'aider svp sur cette exo d'anglais merci

C. Put the adjectives in the correct form (comparative, superlative):
1. Her dress is (pretty)
..... than mine.
2. Cheetahs are (fast)
animals we can find.
3. Eating fruit and vegetables is (healthy)
than eating hot dogs.
4. I like milk (good) ..... ...... than coffee.
5. China has (many)
people than any other country in the world.
6. The blue whale is (heavy)
....... animal in the world.
7. Which is (big) ........................, Portugal or Spain?
8. Travelling by plane is (comfortable) ............................ than travelling by car.
9. He is (untidy) .............
.............. person in class.
10 Buying things from plastic is (bad) ...............than buying things from recycled paper.
11. The Nile is (long) .......................... river in the world.
12. In Mark's opinion History is (difficult) .......
....... than Geography. However
it is (interesting) ........
13. Antarctica is one of (cold)
......... places on Earth.
14. Greece is (hot)
..... than England.
15. Mirror, mirror on the wall, who's (pretty)
....... of them all?
16. Elvis Presley is one of (popular) .....
...... rock singers ever.
17. Jenny is (tall) ............. .....than Alice even though she is (young)
..countries in the world.
18. Switzerland is one of (rich)
...... in the world.
19. People in Africa are the (poor)
leader than Xerxes.
20. Alexander the Great was a (good)
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