題目：

31. Father went to his doctor for ____about his heart trouble.
? ? A.???? an advice?? B. advice?? C. advices?? D. the advices

32. All but one ____here just now.
??? A.???? is???? B. was??????????? C. has been?? D. were?

33. The number of people invited _____fifty， but a number of them _____absent for different reasons.
??? A.???? were； was????? B. was； was?
??? C. was； were? D. were； were

34. The air in big cities _____very dirty by factories.
??? A.???? are often made??????? B. is often made
??? C. have often made?????? D. has often made

35. Nobody ____to smoke in the cinema.
??? A.???? allows??? B. allow??? C. is allowed??? D. are allowed

36. The Chinese people _____hard-working and brave.
??? A.???? are??? B. is??? C. has been?? D. are being

37. ____can be done _____been done.
??? A.???? All； have?? B. All that； have?
? ? C. All； has? D. All that； has

38. John has two brothers， but either ____out of work now.
? ?A.???? are??????? B. is??????? C. has??????? D. have

39. The police ____the murderer everywhere when he suddenly appeared in a theatre.
??? A.???? is searching for????? B. were searching for
??? C. are searching for???? D. were searching

40. Apples of this kind ____.
??? A.???? tastes good? B. tastes well??
??? C. taste good??? D. taste well

【答案解析】

??31-35 BDCBC?? 36-40 ADBBC?