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—Do you know where Mary is? I couldn’t find her anywhere.
—Well . She        have gone far—her coat’s still here.
A.shouldn’tB.mustn’tC.wouldn’tD.can’t
D

试题分析:考查情态动词用法。本题考查情态动词表示推测,can’t 表示对现在情况有把握的否定推测。句意:—你认为Mary在哪里?我到处都找不到她、—她不可能走远的。她的外套还在这里。故D正确。
点评:can’t 表示对现在情况有把握的否定推测
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