41. Do you have any difficulty _______ yourself _______ the American friends?

　A. to introduce; to　　　 B. to introduce; for　　 C. introducing; for　　 D. in introducing; to

40. The child watches TV _______.

　 A. enough carefully　　　 B. careful enough　　 C. enough careful　 　D. carefully enough

39. _______ the end of last month, they _______ the picture.

　　 A. In; will finished　　 B. On; have finished　　 C. By; had finished　 D. At; had finished

38. In the English class our teacher asked us to express __ freely.

　 　A. himself　　　　　　　 B. themselves　　　 C. ourselves　　　　　　 D. myself

37. --Can I pass the exam this term, Mr Wang?　　

--You will fail in the exam _______ you _______ work hard.

　　　 A. unless; don't　　　 B. if; don't　　　 C. until; X　　　　　 D. if; won't

36. There is no more time ____ for _____ for him.

　 A. left; waiting　　　　 B. to be left; waiting　　 C. left; to wait　　　　 D. to leave; to wait

35. I don't think they had an exam in English yesterday, _______?

　　 A. don't I　　　　　　 B. do I　　 C. didn't they　　 D. did they

34. I asked _______ he was getting along with his English study.

　　 A. whether　　　　　　 B. how　　 C. that　　　　　　　　 D. what

33. You must have left your key _______ in the office _______ on the bus.

　　 A. both; and　　　　 B. neither; nor　　 C. either; or　　　 D. not only; but also

32. I met him at _______ evening party given by _______ editor of a new magazine.

　　 A. X; X　　　　　 B. the; X　　 C. X; an　　　　　　　 D. an; the