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    Great changes in the small city in the last 20 years. A. have taken place B. took place C. had taken place D. are happening 【查看更多】

     

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    Great changes_____ in the small city in the last 20 years.

      A. have taken place    B. took place    C. had taken place    D. are happening

     

     

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    Great changes_____ in the small city in the last 20 years.

      A. have taken place    B. took place    C. had taken place    D. are happening

    查看答案和解析>>

    Great changes_____ in the small city in the last 20 years.

    A. have taken place　 B. took place　 C. had taken place　 D. are happening

     

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