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    32．I enjoy fresh air so I always sleep with the window open it is really cold． A. unless B．when C．if D．since 【查看更多】

     

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    I enjoy fresh air so I always sleep with the window open            it is really cold.
    [     ]
    A.unless
    B.when
    C.if
    D.since

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     I enjoy fresh air so I always sleep with the window open           it is really cold.

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

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