55. If you win the competition, you will be given ____ to Europe for two.

A. a free 7-day trip　　 B. a free trip for 7-day　　 C. a 7-day free trip　　 D. a trip for 7-day free

54. --Can I pay the bill by check?

　　 --Sorry, sir. But it is the management rule of our hotel that payment ____ be made in cash.

A. shall　　 B. need　　 C. will　　 D. can

53. Mr Black must be worried about something. You can ____ it from the look on his face.

A. reason　　 B. recognize　　 C. read　　 D. realize

52. As we have much time left, let's discuss the matter ____ tea and cake.

A. over　　 B. with　　 C. by　　　 D. at

51. ____ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.

A. That　　 B. What　　 C. In spite of what　　 D. Though what

50. --How do you think I should receive the reporter?

　　 --____ you feel about him, try to be polite.

A. How　　 B. What　　 C. Whatever　　 D. However

49. --You didn't wait for Mr. Black last night, did you?

　　 --No, but we ____. He didn't return home at all.

A. couldn't have　　 B. needn't have　　 C. didn't need to　　 D. should wait have

48. --How come a simple meal like this costs so much?

　　 --We have ____ in your bill the cost of the cup you broke just now.

A. added　　 B. included　　 C. contained　　 D. charged

47. A terrible earthquake happened in that district at the end of 2004, ____ many countries in the world paid close attention to this.

A. where　　 B. when　　 C. which　　 D. what

46. --What's the matter with Tim?

　　 --Oh, Tim's cellphone was left in a taxi accidentally, never ____ again.

A. to find　　 B. to be found　　 C. finding　　 D. being found