1.The speech______, a lively discussion started. (95.1/45)
A. being delivered B. was delivered
C. be delivered D. having been delivered
2.My sister’s professor had her______ her paper many times before allowing her to present it to
the committee. ( 94.6/49)
www.ExamW.CoM A. rewrite B. to rewrite C. rewritten D. rewriting
3.Silver is the best conductor of electricity, copper______ it closely. (94.6/52)
A. followed B. to follow C. following D. being following
4.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
5.Homework______ on time will lead to better grades. (95.1/44)
A. done B. be done C. having done D. to have been done
答案:DACAA