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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1936

By the time he arrived in Beijing, we _______ there for two days.

A.will have stayed B.stay C.have been staying D.had stayed
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BythetimehearrivedinBeijing,we