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题目内容
（东华大学大学英语4）
148. My wallet is nowhere to be found. I ___________ in the store. 我的钱包找不到了，一定掉在了商店里。
A. must drop it B. must have dropped it
C. should have dropped it D. ought to have dropped it
A. must drop it B. must have dropped it
C. should have dropped it D. ought to have dropped it
参考答案