=>
Ex7/
1. more good-looking
2. more wonderful
3. more slowly
4. happier
5. cheaper
6. more comfortable 
7. heavier
8. longer
9. nicer
10. larger
So sánh hơn :
Đối với tính từ ngắn : adj-er than
Đối với tính từ dài : more adj than

Ex8/
1. more expensive
2. more important
3. happier
4. stronger
5. more comfortable
6. better
7. more interesting
8. more precious
9. more pleasant
10. weaker

Ex9/
1. My school is bigger than your school.
2. Lan is younger than Hoa.
3. My father is older than my brother.
4. This ruler is longer than that ruler.
5. This room is larger than my room.

VII.

1. more good-looking

2. more wonderful

3. more slowly

4. happier

5. cheaper

6. more comfortable

7. heavier

8. longer

9. nicer

10. larger

VIII.

1. expensive

2. more important

3.  happier

4. stronger

5. more comfortable

6. better

7. more interesting

8. more precious

9. more pleasant

10. weaker

IX.

1. My school is bigger than your school

2. Lan is younger than Hoa.

3. My father is older than my mother.

4. This ruler is longer than that ruler.

5. This room is larger than my room.