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    34．-Why is the classroom so dirty? -Sorry.sir. It yesterday We forgot to do it. A. doesn’t clean B. didn’t clean C. sn’t cleaned D. wasn’t cleaned 【查看更多】

     

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    —Why is the classroom so dirty?
    —Sorry，sir. It       yesterday, We forgot to do it.

    A．doesn’t cleanB．didn’t clean
    C．isn’t cleanedD．wasn’t cleaned

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    —Why is the classroom so dirty?

    —Sorry，sir. It       yesterday, We forgot to do it.

    A．doesn’t clean                         B．didn’t clean

    C．isn’t cleaned                          D．wasn’t cleaned

     

    查看答案和解析>>

    —Why is the classroom so dirty?
    —Sorry，sir. It       yesterday, We forgot to do it.
    A．doesn’t cleanB．didn’t clean
    C．isn’t cleanedD．wasn’t cleaned

    查看答案和解析>>

    --Why is the classroom so dirty?

    --Sorry，sir．It_______ yesterday．We forgot to do it．

    A．doesn't clean                             B．didn't clean

    C．isn't cleaned                            D．wasn't cleaned

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