40. –I’ll go home this weekend.

　 -- Give my best wishes to your parents.

　 -- ______.

　 A. No, thanks　　　　 　　　　　　B. I will, thank you　

　 C. The same to you　 　　　　　　　D. You are welcome

39._______ miss the train, he got up very early this morning.

A. In order to not　 　B. So as to not　 　 C. In order not to 　　D. So as not to

34. Some students have trouble _____ grammar while others have difficulty _____ new words.

A. in, remember　 B. for, to remember　 C. on, remembering　 D. with, remembering

37. Charlie said he would make　 _____　 third model plane _____ next day.

　　 A. the, /　 　　　　　B. the, the　 　　　　C. a, the 　　　　　D. a, /

36. His story is ______ his own experience when he was studying in Harvard University.

　 A. based in　 　　　　B. based on　 　　　　C. basing on　 　　D. basing in

35. – Can you tell me how to do this exercise, sir?

　 -- I will tell you how. But you _____ have listened carefully in class yesterday.

　 A. may　 　　　　　B. should 　　　　　C. must　 　　　　D. could