1. Fast- faster 11. atractive- more atractive
2. thin- thinner 12. noisy- noisier
3. large- larger 13. old- older/elder
4. tired- more tired 14. interesting-more interesting
5. good- better 15. wide- wider
6. clever- cleverer 16. independent- more independent
7. short- shorter 17. dry- drier
8. early- earlier 18. polluted- more poluted
9. happy- happier 19. long- longer
10. carefully- more carefully 20. cheap- cheaper
Chúc bạn học tốt nha!!:))
