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    Mr. Smith, there's a man at front door who says he has important news for you. A. the; an B. the; 不填 C. 不填;不填 D. 不填; an 【查看更多】

     

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    Mr. Smith, there's a man at ________ front door who says he has ________ important news for you.

    A. the; an             B. the; 不填            C. 不填;不填         D. 不填; an   

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