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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 191

The river is said __________ in a fire during the past 10 years.

A.to have polluted B.it has been polluted
C.to pollute D.to have been polluted
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Theriverissaidinafireduringthe