31. There are ____ women doctors in this hospital. ____them is 52.

A. a number of; The number of 　　　　　 B. the number of; A number of

　 C. number of; Number of　　　　　　　　　 D. a number of; The number

30. ---- When ____ you ____ for Shanghai?

　 ---- Next Monday.

A. are; leaving 　B. do; leave　　　 C. did; leave　 　 D. are; left

29. _____ the age of ten, he ___ to play the piano.

A. At; had learned　　　　　　　　 B. At; learns　 　　

C. By; had learned　　　　　　　　 D. At; has learned

28. Why not _____ her _______ as she likes?

A. let; does　 　B. let; do　　　　 C. to let; to do　 　 D. letting; do

27. Over 200 people ______ in the building when the fire ____out

A. worked; broke　 　　　　　 B. had worked; broke　　　　

C. worked; was breaking　　　　　 D. were working; broke

26. All these changes will lead to ______ strong and powerful China, ______ country that can surprise and enrich our planet.

A. a; a　　　　 B. the; a 　　　　　　　　　　 C. the; the　　　　 　 D. a; the

25. I had just gone to bed after a very hard day ______ the phone rang.

A. suddenly 　 B. when　　　　　　 C. while　　　　 　　 D. as　　　

24. Tom promises he’ll come to the party ______ he isn’t invited.

A. as if 　　　　　 B. even 　　　　　　　　　　　 C. even though 　　　　 D. because

23. Some people ______ playing football while others enjoy ______ football matches.

A. be fond of; watch　　　　　　　 　　　 B. are fond; watching

C. are fond of; watched　　　　　　 　　　 D. are fond of; watching

22. Could you tell me ______ last year?

A. which school you were at　　　　 　　　 B. which school you were

C. which school were you at　　　　 D. where school were you