We found it impossible______________ all the questions within the time given.

A．solve

B．being solving

C．to have solved

D．to solve

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参考答案

【答案】D
【译文】我们发现，要想在规定的时间内答完所有的题目是不可能的。
【译文】非谓语动词
【解析】不定式(短语)做宾语时，如果其后跟补足语，通常用it作形式宾语来替代不定式这个真正宾语，故选D。

1 We don' t allow______________in the meeting room.

A．to smoke

B．smoked

C．smoking

D．to smoking

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2 ______________is known to the world, Mark Twain is a great American writer.

A．As

B．That

C．Who

D．Which

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3 There were______________for Saturday' s movie.

A．not available tickets

B．no available tickets

C．no tickets available

D．tickets no available

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