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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1639

When he  _______ the door, he found his keys were nowhere.                       

A.would open B.opened C.had opened D.was to open
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Whenhethedoor,hefoundhiskeyswe