45.(　　 ) -We are going to visit Cambridge for our summer holiday.

　　　 -Super! I’m sure you can __________ yourselves there.

　　　 A. help　　 　　B. teach　　　　 C. look after　　 D. enjoy

44.(　　 ) -It’s so kind __________ you __________ me so much help.

　　　　 -Don’t mention it.

　　　　 A. for, to give　　　　 B. of, to give　　　　 C. for, giving　　　　 D. of, giving

43.(　　 ) When I met the woman, I remembered __________ her once somewhere. But I forgot __________ hello to her.

　　　　 A. seeing, saying　　　 B. to see, to say　　　 C. seeing, to say　　　 D. to see, saying

42.(　　 ) We have never seen _________ film before. It’s very interesting.

　　　　 A. so a good　　　　 B. a so good　　　　　 C. such a good　　　　 D. a such good　　　　　　

41.(　　 ) The two watches are both very beautiful. I really don’t know 　　　　　.

　　　　 A. what to choose　　 B. which to choose　　 C. to choose what　　 D. to choose

40.(　　 ) The land, water and air must __________ clean in our city.

　　　　 A. make　　　　　　 B. keep　　　　　　　 C. be making　　　　 D. be kept

39.(　　 ) If you come back __________ I do, wait for me here.

　　　　 A. before　　　　　　 B. after　　　　　　　 C. when　　　　　 D. while

38.(　　 ) -Sir, you __________ park your car in the middle of the street.

　　　　 -I __________ stop. A dog was running across the street.

　　　　 A. mustn’t, needn’t　 B. needn’t, mustn’t　　 C. mustn’t, must　　 D. needn’t, need

37.(　　 ) Wang Jianchang was taken in by Tsinghua University, and he had to __________ 6000 yuan each year for tuition fee (学费).

　　　　 A. spend　　　　　　 B. pay　　　　　　　 C. cost　　　　　　 D. take

36.(　　 ) -__________ will you be back from abroad?

　 　　　-It’s hard to say. Maybe in two years, more or less.

　 　　　A. How soon　　　　 B. How long　　　　 C. How often　　　　 D. How much