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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1218

The river near our school has become clean again as new measures have been __________ to  prevent it __________ any further.

A.taken; polluting
B.taking; being polluted
C.taken; being polluted
D.taking; to be polluted
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Therivernearourschoolhasbecome