My computer ____start, no matter how hard I try.-lt might h..

My computer ____start, no matter how hard I try.-lt might have crashed.A.won'tB.shouldn'tC.mustn'tD.wouldn't

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She is a quiet girl at school,but sometimes she _____ be v..

She is a quiet girl at school,but sometimes she _____ be very naughty.A.shouldB.wouldC.willD.can

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______ you put the sun there did the movements of the other ..

______ you put the sun there there did the movements of the other planets in the sky make sense.A. If only B. If so C. Only if D. As long as

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I told Sally how to get here, but perhaps I ______for her...

I told Sally how to get here, but perhaps I ______for her.A.had to write it outB.must have written it outC.should have written it outD.ought to write it out

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The man ran out of the room _____ I could say goodbye. [ ]A..

The man ran out of the room _____ I could say goodbye.A. as B. since C. until D. before

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