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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 965

I felt somewhat sad and was about to leave _________ something happened which drew my attention.

A.unless B.until
C.when D.while
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Ifeltsomewhatsadandwasabouttol