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    - How old is the bridge over there? - Oh, very old. It about three hundred years ago. A. is built B. was built C. is building D. has built 【查看更多】

     

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    —How old is the bridge over there?
    —Oh, very old. It _____ about three hundred  years ago.
    [     ]
    A. is built
    B. was built
    C. is building
    D. has built

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