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    ---What do you think of the project Mr. Smith asked us to do ? --- Well ,it is a very important task. You be too careful. A. must B. can C. cannot D. mustn’t 【查看更多】

     

    题目列表(包括答案和解析)

    － What do you think of the project Mr．Smith asked us to do ?

    － Well ,it is a very important task．You ________ be too careful．

    [　　]

    A．must

    B．can

    C．cannot

    D．mustn’t

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