Exercise 1:
1. cheaper 11. farther/further
2. colder 12. older
3. thinner 13. better
4. better 14. better
5. faster 15. more slowly
6. more colourful 16. quicker
7. bigger 17. worse
8. more expensive 18. worse
9. more popular 19. more modern
10. longer 20. prettier
Exercise 2:
1. cook → cooking
2. likes → like
3. eaten → eating
4. playing → play
5. loves → love
6. fancies → fancy
7. of → bỏ đi
8. watches → watching
9. ride → riding
10. talking → talk
