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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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----- “Where is Mother.”
------ “She is still in the kitchen.  She _______ the housework all morning.”

A.is doing B.was doing C.has done D.has been doing
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WhereisMother.Sheisstillinthek