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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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Susan decided not to work on the program at home because she didn’t want her mother to know what she _____.

A.has done B.had done C.was doing D.is doing
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Susandecidednottoworkontheprog