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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1754

There were signs here and there, _____ people to look out for ___rocks.

A.warned; fallen B.warning; fallen C.warning; falling D.warned; falling
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Thereweresignshereandthere,peo