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    ---How unhappy your roommate looks! ----Yes.but he’s not willing to tell me what it is is troubling him. A. what B. which C. as D. that 【查看更多】

     

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    ----How unhappy your roommate looks!

    ----Yes，but he’s not willing to tell me what it is____ is troubling him.

    A. what       B. which         C. as            D. that

    查看答案和解析>>

    ----How unhappy your roommate looks!

    ----Yes，but he’s not willing to tell me what it is____ is troubling him.

    A. what       B. which         C. as            D. that

    查看答案和解析>>


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