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    The Roman Empire for several centuries. A. exists B. existed C. was existed D. is existing 【查看更多】

     

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    . The Roman Empire _____ for several centuries.

    A. exists      B. existed        C. was existed     D. is existing

     

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    The Roman Empire _____ for several centuries.                            

    A. exists           B. existed       C. was existed    D. is existing

     

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    The Roman Empire _____ for several centuries.
    [     ]
    A. exists
    B. existed
    C. was existed
    D. is existing

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    . The Roman Empire _____ for several centuries.

    A exists      B. existed        C. was existed     D. is existing

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    The Roman Empire _____ for several centuries.

    A. exists      B. existed        C. was existed     D. is existing

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