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    27．--- Are you going to stay overnight? --- Not it’s really necessary. A．if B．unless C．until D．since 【查看更多】

     

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    .

    --- Are you going to stay overnight?

        --- Not__________it’s really necessary.

           A．if              B．unless           C．until          D．since

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    —Are you going to stay overnight?

                        —Not _____ it's really necessary．

    A．unless               B．if                       C．until           D．since

     

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    --- Are you going to stay overnight?

    　 --- Not __________ it’s really necessary.

    　 A．if B．unless C．until　 D．since

     

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    --- Are you going to stay overnight?

    　 --- Not __________ it’s really necessary.

    　 A．if B．unless C．until　 D．since

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    －Are you going to stay overnight?

    －Not ________ it's really necessary．

    [　　]
    A．

    if

    B．

    unless

    C．

    until

    D．

    since

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