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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 175

The earthquake ______ when I _______some cleaning.

A.starts, was doing B.started, was doing
C.was starting, was doing D.starts, were doing
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TheearthquakewhenIsomecleaning