11. My mother knows Jane. They _________to each other at a party.
A. have been introduced
B. are introduced
C. were introduced
D. had been introduced
答案：C
12. The President gave the Secretary of State 30 days_________the report.
A. completes
B. to complete
C. completing
D. completed
答案：B
13. ——ho do you-think has made my room so dirty, Mom?
——It_________be your younger brother.
A. must
B. shall
C. will
D. would
答案：A
14. Seldom _________ any mistakes during my past five years of service here.
A. I would make
B. would I make
C. did I make
D. I did make
答案：C
15. Mr. Zhang gave the textbooks to all the pupils except_________ who had already taken them.
A. the ones
B. ones
C. some
D. the others
答案：A
16. We want to buy the same book _________you are reading.
A. which
B. that
C. as
D. it
答案：C
17. George cooked me a meal, _________ was a first for him.
A. what
B. when
C. who
D. which
答案：D
18. "I want to beg a favour of you, sir. I want to sent a letter home,what_________is. "He said.
A. that's, that
B. it's, it
C. it's, that
D. that's, it
答案：D
19. A fight broke out among the football fans and soon it went __________control.
A. under
B. beyond
C. above
D. over
答案：B
20. Two nuclear power stations __________in the past ten years.
A. have been built
B. built
C. would be built
D. are built
答案：A
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