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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 492

________ in his book, he didn't notice me ________ I entered the room.

A.Devoted; when B.Absorbed; while
C.Absorbed; when D.Devoted; while
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相关知识点

inhisbook,hedidntnoticemeIente