19. There are many books on the desk, ­­­­­­__________ are about the history of China.

　 A. most　　 B. most of them　 C. most of which　 D. a lot of those

18. Each time he_______ me, he will write to me as soon as possible.

A.　　　 will hear from　 B. hear from　 C. hears from　 D. has heard

17. My daughter _________hard for a whole year to realize her dream being admitted to a famous university and now her dream comes true.

　 A. works　　 B. is working　　 C. has worked　 D. worked

16. Mr. Woodhead must have been punished for his being rude, ---------- he?

　 A. mustn’t　　 B. haven’t　　　 C. hasn’t　　　　 D. didn’t

15. ________very nice, this kind of watermelon has a good sale.

　 A. Tasting　　 B. Tasted　　　 C. Having been tasted　　 D. To be tasted　

14. -.　 Why are they going to meet this Thursday?

　 -. _____ a new scheme.

　 A. Discuss　　　　　 B. Discussing　　　 C. To discuss　　 D. For discussion

13. Many students think physics is ________chemistry.

　 A. as difficult a subject as　　　　 B. as a difficult subject as

　 C. the same difficult subject as　　 D. a subject the same difficult as

12. _____ puzzles me most is that I don’t know ______ the difference between the two lies.

　 A. What, how　　　　 B. What, where　　　　 C. That, what　　　　 D. How, which

11. It is said that ________ second library will be set up here in_______ year or two.

A. a, a　　　 B. the, one　　　 C. the, any　　　　　　　 D. a, the

10. When I say two hours, _______ includes time for our lunch.

A. as　　　 B. which　　　　　 C. that　　　　　　　　 D. what