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只有把太陽放置在太陽系的中心位置,其它行星的運動才解釋得通。
Only if you put the sun at the centre of the solar system did the movements of the other planets in the sky __________ _________.
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Some children are mad over video games. They just can't tear themselves away from them _______ they start.
A.since B.once C.even if D.a(chǎn)s
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He insisted that he _______ nothing wrong and that he _______ now.
A. did, be freed B. had done, would be freed
C. should do, should be freed D. should do, was
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The news reporter hurried to the airport, only _____ the film stars had left. A. to tell B. to be told C. telling D. told |
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Historically, _______ main material for making tables has been wood, but ______ metal and stone have also been used.?
A. the; / B. /; /?C. the; the D. /; the
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________ books you read, _______ knowledge you will gain.( )
A. The many; the more B. The more; the much
C. The more; the more D. The many; the much
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The limited supply of water has been put into practice, take care to turn off the running ____ before you leave.
A. radio B. traffic lights C. gas D. tap
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He spends as much time as he can______books.
A. reading B. read C. reads D. to read
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