Câu 5:
1. wonderfuller --> wonderful
2. more older ---> older
3. bigger ---> big
4. different ---> more different
5. more ---> most
Câu 4:
1C 2B 3C 4B 5B
6A 7C 8C 9C 10C
Câu 3:
1. bigger
2. thinner
3. more expensive
4. more simple
5. the most careful