Exercise 2:

1. atmosphere

2. shelter

3. extended 

4. overcrowding

5. packed 

Exercise 3:

1. better

2. faster

3. the least

4. better

5. prettiest

6. good

7. happiest

8. the best

9. fewer

10. the farther

Exercise 4:

1. easier

2. more expensive

3. the most unusual

4. more interesting

5. the most difficult

6. worse

7. the hardest

8. thinner

Ex 3 : 

1 . the best

2 . faster

3 . the least

4 . better

5 . prettier

6 . good

7 . happiest

8 . the better

9 . few

10 . the farthest

Ex 4 :

1 . easier

2 . more expensive

3 . the most unusual

4 . more interesting

5 . the most difficult

6 . worse

7 . the hardest

8 . thinner

#Xin hay nhất