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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 913

We were having a picnic when _______ there came a downpour, which was really a wet blanket.

A.all at once B.in addition
C.in return D.as well
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Wewerehavingapicnicwhenthereca