8. The white dress is cheaper than the black one.
9. According to me, Maths is more difficult than English.
10. That computer works more badly than this one.
Bài 3:
1. more exciting
2. more fantastic
3. better
4. faster
5. more valuable
6. larger
7. easier
8. farther
9. bigger
10. taller
11. longer
12. more dangerous
13. luckier - later
14. bigger - cheaper
15. more famous
16. farther
17, more useful
18. better - older
19. come complicated
20. thinner - taller