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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1537

While watching television, ____.

A.the doorbell rang B.we heard the doorbell ring
C.there was someone knocking at the door D.the doorbell was ringing
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Whilewatchingtelevision,.A.the