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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 491

-What is the boy standing out of the house for?       .
-Because he left his key at home. He can't get in the house         his parent comes back.

A.because B.until C.after D.when
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Whatistheboystandingoutoftheho