Whale beachings(搁浅)_______ be caused by factors such as il..

Whale beachings(搁浅)_______ be caused by factors such as illness, or disorientation(迷失方向)caused by extra noise in the oceans, ______ shipping or oil and gas drilling.A.might; fromB.will; byC.should; inD.shall; on

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He _____ have gone to Shanghai, for I saw him a moment ago...

He _____ have gone to Shanghai, for I saw him a moment ago.A.mustB.can’tC.mustn’tD.can

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He is sweating heavily. He _______ weightlifting for a long..

He is sweating heavily. He _______ weightlifting for a long time.A.could have practicedB.can practiceC.must have practiced D.might practice

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—Why don’t you wear your jogging shorts, mum?—Well, my leg..

—Why don’t you wear your jogging shorts, mum?—Well, my legs are too skinny, if you ______ know. A.mustB.can C.mayD.need

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(2013·高考陕西卷)The children________lost in the woods;othe..

(2013·高考陕西卷)The children________lost in the woods;otherwise,they would have been at the lakeside camp as scheduled.A.must have gotB.must getC.should have gotD.should get

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