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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1064

This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we've done to the environment.

A.have reflected B.are reflecting C.will reflect D.reflected
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Thisnationwidesmogshouldservea