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    He has worked in this radio factory for ten years. But before he did the job he as a construction worker for five years. A. had worked B. worked C,. has worked C. was working 【查看更多】

     

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    He has worked in this radio factory for ten years. But before he did the job he ______ as a construction worker for five years.
      A. had worked     B. worked     C,. has worked     C. was working

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