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    The math problem was the most difficult one I had ever met, but I to work it out at last. A. tried B. managed C. succeeded D. failed 【查看更多】

     

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    The math problem was the most difficult one I had ever met, but I _________ to work it out at last．


    1. A.
      tried
    2. B.
      managed
    3. C.
      succeeded
    4. D.
      failed

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