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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 301

Almost all of his time ______ experiments, he has no time to visit his parents.

A.devoted to do B.devoted to doing
C.devoting to doing D.is devoted to doing
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Almostallofhistimeexperiments,