42.I find it necessary _______ more about other cultures.

　 A. know　　　 　B. knows　　　　　 C. to know　　　　　 D. known

41.We had never met before, so we _____ to introduce ourselves to each other.

　 A. are supposed B. supposed　　　 C. were supposed　　 D. should

40.You can’t imagine how different the table manners are from_____.

　 A. us　　　　　 B. their　 　　　　　C. them　　　　　　 D. ours

39._______ studies help farmers get the most corn and wheat from each field.

　 A. Science　　 B. Scientist　　　 C. scientific　　　 D. Scientific

38.In some cultures, receiving money _______ people uncomfortable.

　 A. made　　　　 B. making　　　　　 C. makes　　　　　 　D. is made

37.Could you tell me _______ there is a hospital near here?

　 A. that　　　　 B. what　　　　　 C. if　　　　　　　 D. which

36.Marcia finished writing the book in her ________.

　 A. thirty　　 B. thirtieth　　　 C. thirties　　　　 D. the thirtieth

35.The Greens haven’t　 decided ________ for their only daughter.

　 A. to buy something　 B. how to buy　　 C. what to buy　 D. to buy what

34.We had better follow the ________ from our parents.

　 A. advice　　 B. advices　　　　　 C. voice　　　　　 D. works

33. We should read ______　 we can.

　 　A. as books as　　　　　　　　　　 　B. as many as books　

C. as more books as　　　　　　　 　D. as many books as