We had great difficulty________ the language. . [ ]A. pick up

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We had great difficulty________ the language.        .   [     ]
A. pick up
B. to pick up
C. picking up
D. picked up

答案

举一反三

I can"t bear __________alone.    [     ]
A. live
B. living
C. having lived
D. lived

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_________ the nuclear weapon astonished the whole world.    [     ]
A. That country proving
B. That country being proved
C. That country"s proving
D. That country"s being proved

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I can"t stand ________ with Jane in the same office. She just refuses__________ talking while she works.     [     ]
A. working ; stopping
B. to  work ; stopping
C. working; to stop
D. to work; to stop

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No one had told Smith about ________a lecture the follow-ing day.     [     ]
A. there be
B. there being
C. there would be
D. there was

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He hesitated_________ . Which is wrong?    [     ]
A. about whether to go or not
B. about going to the town
C. going to the town
D. to accept the advice

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