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Lucy was pleased at news that Dr. Manette, a prisoner for many years, had recently been set free. A. having been kept B. being kept C. having kept D. to be kept 【查看更多】

 

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Lucy was pleased at news that Dr. Manette, _____ a prisoner for many years, had recently been set free.
  A. having been kept B. being kept      C. having kept      D. to be kept    

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