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    Light and heat often sent out together with heavy smoke. A. is B. was C. are D. being 【查看更多】

     

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    Light and heat _____often sent out together with heavy smoke.

    A.is      B. was     C. are   D. being

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    Light and heat ________ often sent out together with heavy smoke.

    A. is

    B. was

    C. are

    D. being

     

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    Light and heat ________ often sent out together with heavy smoke.

    A. is

    B. was

    C. are

    D. being

     

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