24. Mike is(A) very(B) cleverer(C) than(D) Jack.

23. Which(A) do you like(B) best(C), this one or(D) that one?

22. He is(A) taller(B) than(C) any boy(D) in his class.

21． This is(A) his(B) the best(C) book(D).

20. Math ______ one of the ______ subjects in middle schools.

A. are; important B. is; most important

C. is; more important D. are; much important

19. We can't live ______ air.

A. without B. with C. to D. out

18. I think Liu Dehua is one of the ______ movie stars in China.

A. popular B. popularest C. more popular D. most popular

17. ______, English, math or Chinese?

A. What do you like best B. Which do you like best

C. What do you like better D. Which do you like better

16. The box is ______ of all.

A. heaviest B. the bigest C. the heavier D. the biggest

15. This storybook is ______ (interesting) of the three.