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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1995

.He was about to leave ______the telephone rang; ______was from his mother.

A.when; that B.before; which C.when; it D.before; this
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.Hewasabouttoleavethetelephone