问题 选择题
—God!My cell phone is missing.
—You ________ have left it at home.I heard you telephone our daughter in the bathroom.
A.shall B.must
C.wouldD.could
答案

B

解析 考查情态动词。根据答语第二句的内容可知第二个说话人认为对方“一定”是把手机忘在家里了。

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