55. _____that it was going to snow, the climbers decided to put off their attempt on the highest mountain.

A. Having told　 B. Having been told　 C. Tell　 D. Telling

54. Everyone had an application form in his hand, but no one knew which office _____.

A. to send it to　 B. to send it　 　C. to be sent to　 D. to have it sent

53. After the Arab states won independence, great emphasis was laid on education, with girls as well as boys _____ to go to school.

A. to be encouraged　 B. encouraging　 C. encouraged　 　 D. be encouraged

52. To tell you the truth, I’d rather read than watch television; the programs seem _____ all the time.

A. to get worse　 　 B. to be getting worse 　C. to have got worse　 D. getting worse

51. _____ it or not, his discovery has shocked everyone in scientific circles.

A. Believe 　 B. To believe　　 C. Believing　 D. Believed

50. After the guests left, she spent as much time as she could _____ the rooms.

A. tidy up　 B. to clear away　 C. clear away　 D. tidying up

49. - Is there anything you want from town?

　 - No, thank you. But I would like to get _____.

　　 A. those letters mailed　 B. mailed letters　

　　 C. to mail those letters　 D. those letters mail

48. _____ she can’t come, who will do the work?

A. Supposed　 B. Supposing　 C. Having supposed　 D. Being supposed

47. _____, John returned to school from his hometown.

A. The summer vacation being over　 　B. The summer vacation is over

C. Because the summer vacation over　 D. After the summer vacation being over

46. Prices of daily goods _____ through a computer can be lower than store prices.

A. are bought　 B. bought　 C. been bought　 D. buying