45. Could you tell me if he ______ come to the party later?

　 A. should　　　　　　　　 B. would　　　　　　　 C. will　　　　　　　　　 D. shall

44. He ______ me of that appointment for ten minutes! I won’t forget it.

　 A. remind　　　　 　　　 B. has reminded　　 C. was reminding　 D. has been reminding

43. -Where did you put your car keys?

　 -Oh, I ______ I put them on the chair because the phone rang as I ______ in.

　 A. remembered; come　　　　　　　　　　　　　 B. remembered; was coming

　 C. remember; come　　　　　　　　　　　 　　　 D. remember; was coming

42. This washing machine is environmentally friendly because it uses ____ water and electricity than ___ models.

　 A. less; older　　　　　 B. less; elder　　　　　 C. fewer; older　　　 D. fewer; elder

41. You know he is not going to let us leave early if we ______ get the work done.

　 A. can’t　　　　　　　　　 B. may not　　　　　　 C. shouldn’t　　　　　 D. mustn’t

40. I had done my homework ______ the light went out.

　 A. as　　　　　　　　 　　　 B. until　　　　　　　　　 C. while　　　　　　　　 D. when

39. It must be colder tomorrow than today, ______ it?

　 A. mustn’t　　　　 　　　 B. won’t　　　　　　　　 C. isn’t　　　　　　　　　 D. can’t

38. Anyone can take good photos. ______ in the right place at the right time.

　 A. The question is　　 B. They are　　　　　　 C. It’s a fact of　　　 　　　 D. It’s just a matter of being