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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1097

Great changes _____ in China in the past 30 years and many Chinese are living a happy life today.

A.took place B.were taken place
C.have taken place D.have been taken place
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GreatchangesinChinainthepast30