选择题：—My wallet is nowhere to be found. I ______in the store.A. must drop it B. must

题目分类：大学英语B级
题目类型：选择题
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题目内容：

—My wallet is nowhere to be found. I ______in the store.

A. must drop it B. must have dropped it C. should have dropped it D. ought to have dropped it

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答案解析：

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