第1题：
A.I opened
B. did I open
C. I had opened
D. had I opened
参考答案：D
第2题：
A. operated
B. operated on
C. cut on
D. opened
第3题：
How did he make his way out in the end?
A. The vice-president found him.
B. Some one opened the elevator.
C. The elevator began to work on Tuesday.
D. He found a door in the elevator.
第4题：
When all the people had assembled, the king, surrounded by his court, (21) a signal. Then a door beneath him opened, and the accused man stepped (22) into the arena. Directly opposite him were two doors, exactly (23) and side by side. It was the duty and the privilege of the (24) on trial to walk directly to these (25) and open one of them. He (26) open either door he pleased; he was subject to no (27) or influence. If he opened the one, there came out of it a hungry tiger, the (28) and most cruel that could be found, which (29) sprang upon him and tore him to pieces as a punishment for his guilt. (30) , if the accused person opened the other door, out of it came a (31) lady, and to this lady he was immediately married, as a reward of his innocence. This was the (32) method of administering justice. Its perfect fairness is obvious. The criminal could (33) know out of which door would come the lady; he opened either he pleased, without having the slightest (34) whether, in the next instant, he was to be devoured or married. So the accused person was instantly (35) if guilty, and, if innocent, he was rewarded on the spot.
21.
A. give
B. gives
C. gave
D. given
第5题：
A、Though
B、The moment
C、If
D、Unless
第6题：
When he the door, he found his keys were nowhere.
A. would open B. opened C. had opened D. was to open
第7题：
A. Judged
B. To judge
C. Judge
D. Judging
第8题：
Growing numbers of scientists therefore see Antarctica as a distant early warning sensor, where potentially dangerous global trends may be spotted before they show up to the north.
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第9题：
A. stealing
B. stolen
C. steal
D. stole
第10题：
A.somebody
B.someone