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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较难
  • 浏览 362

Most of her spare time ______ , she still kept on her research in the laboratory.

A.occupied B.had been occupied
C.to be occupied D.was occupied
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Mostofhersparetime,shestillkep