On the top of the mountain ________, which many people go to visit.

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When I reached the station she ______for almost half an hour.

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A．had gone

B．had been away

C．was away

D．had been left

—Would you like to go shopping with me this Saturday?

—I'll go with you, if it ______ rain then.

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This is______ I've ever read.

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A．the most important novel that

B．more interesting novel

C．the most interesting novel which

D．most interesting novel that

Mr. Green seldom goes to bed before 12 O'clock,____?

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The professor observes things carefully, ______.

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