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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1408

________ that the Youth Olympic Games might be delayed due to severe air pollution, our government has made a promise to Jacques Rogge that they will spare no effort to settle the problem.

A.Warned B.Having warned
C.Warning D.Being warned
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thattheYouthOlympicGamesmightb