练习册

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    Your trousers dirty.You must have washed. A.is;il B.are;it C.are;them D.is;them 【查看更多】

     

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    Your trousers____ dirty.You must have____ washed.

    A.is;il              B.are;it              C.are;them        D.is;them

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    Your trousers____ dirty.You must have____ washed.

    A．is;il

    B．are;it

    C．are;them

    D．is;them

     

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