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    He works in a factory now, but he on a farm for 20 years. A. worked B. has worked C. had worked D. had been working Key: A 【查看更多】

     

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    He works in a factory now , but he ______ on a farm for 20 years.


    1. A.
      worked
    2. B.
      has worked
    3. C.
      had worked
    4. D.
      had been working

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    He works in a factory now, but he   on a farm for 20 years.

    A. worked   B. has worked      C. had worked  D. had been working

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    He works in a factory now, but he   on a farm for 20 years.

    A. worked   B. has worked      C. had worked  D. had been working

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    He works in a factory now, but he__ on a farm for 20 years.

    A. worked   B. has worked      C. had worked  D. had been working

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    He works in a factory now, but he   on a farm for 20 years.

    A. worked   B. has worked      C. had worked  D. had been working

    查看答案和解析>>


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