51. Mark often attempts to escape______ whenever he breaks traffic regulations. ( 95.6/42)
　　A. having been fined B. to have been fined C. being fined D. to be fined

　　52.No matter how frequently_______, the works of Beethoven always attract a large
　　audiences. ( 95.6/43)
　　A. performed B. performing C. to be performed D. being performed

　　53.You will want two trees about ten feet apart, from_______ to suspend your tent. (95.6/50)
　　A. there B. them C. where D. which

　　54.That was so serious a matter that I had no choice but______ the police. (96.1/24)
　　A. called in B. calling in C. call in D. to call in

　　55.If I had remembered _______ the window ,the thief would not have got in. (96.1/40)
　　A. to close B. closing C. to have closed D. having closed

　　56.Don’t get your schedule _______, stay with us in class. (96.1/42)
　　A. to change B. changing C. changed D. change

　　57.______ the earth to be flat, many feared that Columbus would fall off the edge of the earth.
　　(96.6/22)
　　A. Having believed B. Believing C. Believed D. Being believed

　　58.If I correct someone, I will do it with as much good humor and self-restraint as if I were the one______. (96.6/28)
　　A. to correct B. correcting C. having corrected D. being corrected

　　59.The ancient Egyptians are supposed_____ rockets to the moon. (96.6/37)
　　A. to send B. to be sending C. to have sent D. to have been sent

　　60.There’s a man at the reception desk who seems very angry and I think he means______ trouble. (97.1/25)
　　A. making B. to make C. to have made D. having made

　　答案：CADDA  CBDCB