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41.My sister’s professor had her______ her paper many times before allowing her to present it to the committee. ( 94.6/49)
A. rewrite B. to rewrite C. rewritten D. rewriting
42.Silver is the best conductor of electricity, copper______ it closely. (94.6/52)
A. followed B. to follow C. following D. being following
43.He asked______ since he had been chairman for seven years. (94.6/67)
A. not to be re-elected B. to be not re-elected
C. not to have been re-elected D. to have not been re-elected
44.Homework______ on time will lead to better grades. (95.1/44)
A. done B. be done C. having done D. to have been done
45.The speech______, a lively discussion started. (95.1/45)
A. being delivered B. was delivered
C. be delivered D. having been delivered
46.______a teacher in a university, it is necessary to have at least a master’s degree. (95.1/48)
A. To become B. Became C. One becomes D. One becoming
47.It is not unusual for workers in that region_______. (95.1/55)
A. to be paid more than a month late B. to be paid later than a month
C. to pay later a month more D. to pay later more than a month
48.Michael used to look hurt and surprised when_______. (95.1/58)
A. Scolding B. to scold C. having scolded D. scolded
49.Realizing that he hadn’t enough money and______ to borrow form his father, he decided to sell his watch. ( 95.1/67)
A. not wanted B. not to want C. not wanting D. wanting not
50.I would appreciate_______ it a secret. ( 95.6/41)
A. you to keep B. your keeping C. that you keep D. that you will keep
答案：ACAAD AADCB
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