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    They've kept up a friendship with the teacher whom they were at school twenty years ago. A. with B. about C. since D. till 【查看更多】

     

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    They've kept up a friendship with the teacher whom they were at school _____ twenty years ago. 

    A. with    B. about    C. since    D. till

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    They've kept up a friendship with the teacher whom they were at school _____ twenty years ago.


    1. A.
      with
    2. B.
      about
    3. C.
      since
    4. D.
      till

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