4, No boy in the class is taller than him.

5, There isn’t a more interesting film than this one.

6, Japanese cars are the most expensive in the world.

7, This exercise is not as difficult as that one.

8, Jack drives more carelessly than he does.

9, This is the most comfortable hotel in the city.

10, The Pacific Ocean is the largest in the world.

11, I’ve never tasted a more delicious cake than this.

12, George is the most dependable person I’ve met.

13, Your mother is the most kind-hearted person.

14, Mr. John is the best teacher in this school.

15, Is this the biggest that you’ve got?

EX 4:

1, more beautiful than

2, the hottest

3, as dangerous as

4, more polite

5, colder

Mình trình bày trong hình nhé ^^