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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
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It suddenly occurred to him________he had left his keys in the office.   (2012·江西,25)

A.whether B.where
C.which D.that
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Itsuddenlyoccurredtohimhehadle