40. The man ________gave us a talk on science yesterday is a famous scientist.

　　 A. who　　　　 B. whose　　　　 C. which　　　 　D. whom

39. The woman and her husband ________in the same office.

　　 A. work　　　　　　　　　　 B. works

　　 C. is working　　　　　　　　 D. has worked

38. His parents wanted to know what he ________at that time.

　　 A. is doing　　　　　　　　　　　　 B. was doing　　

　C. has done　　　　　　　　　　　 D. will do

37. -- ________Will you stay in Shenzhen for your holiday?

　　 --For about two weeks.

　　 A. How often　　　　　　 　　　　　B. How long

　　 C. How soon　　　　　　　　　　 D. What time

36. You won't pass your exams ________you work harder.

　　 A. when　　　　 B if　　　　　　　 C. unless　　　　 D. after

35. The plane ________at three o'clock in the afternoon.　　

A. takes off　　　　　　　　　　　 B. takes away

　　 C. takes out　　　　　　　　 　　　　D. takes down

34. Some famous paintings ________in the hall next week.　　

A. will show　　　　　　　　　　　 B. were shown

C. is shown　　　　　　　　　　　 D. will be shown

33. --Are you going to see the film with us?

　 ---No. thanks. I _______ it.

　　 A. saw　　　　　　　　　　　　　　 B. have seen

　　 C. see　　　　　　　　　　　　　　　 D. was seeing

32. You ________be tired after working for eight hours without a rest.

　　 A. can　　　　　 B. may　　　　　 C. must　　　　　 D. need

31. I am sure that he is ________a lie.

　　 A. saying　　　 B. talking　　　　 C. speaking　　　 D. telling