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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
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When Mary arrived she found all her children ______ for nearly two hours.

A.have gone to sleep B.fell asleep
C.was falling asleep D.had been asleep
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WhenMaryarrivedshefoundallherc