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题目
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As is natural, a man as old as he ______ be very forgetful.
A.canB.mustC.shouldD.would

答案
A
解析
can通常用来表示“理论上的可能性”,并不涉及到是否真的会发生,本句中即是此意,“从自然规律上来讲,象他这样的老人会很健忘”。
核心考点
试题【As is natural, a man as old as he ______ be very forgetful.A.canB.mustC.shouldD.】;主要考察你对虚拟语气等知识点的理解。[详细]
举一反三
—The poor people lived near the highway.
—_____ very noisy.
A.It must have beenB.They must beC.That might beD.There must be

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He _____ his parents that he has failed in the exam.
A.dares not tellB.dares not tellingC.dare not tellD.dares not to tell

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Messages ______ be changed from sound into electricity before they ______ be sent by radio.
A.must; willB.have to; canC.can; mustD.need; may

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The whole building _____ burned down, but the heavy rain _____.
A.might have; would help
B.could have been; helped
C.must have; helped
D.should have been; was helping

题型:不详难度:| 查看答案
—Many people in England love to give advice on weather reporting.
—Yes, but I think the weather office’s computers _____ be more accurate.
A.canB.mustC.ought toD.might

题型:不详难度:| 查看答案
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