【C19】A．could beB．must beC．should beD．would be

【28】A．can beB．may beC．must not beD．may not be

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The two strangers talked as if they ______ friends for years.A．should beB．would beC．have b

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It is necessary that measures _____ taken right now.A: beB: must beC: will beD: can be

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If the captain ____more careful, his ship would not have been sunk.A．should beB．were to be

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It is impossible for there______any more beer in this bottle.A．beingB．would beC．beD．to be

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My father ______ sixty next year.A、is going to beB、is to beC、will beD、is about to be

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If I___to do the experiment I would do it some other way.A.should beB.should be goingC

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