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It is said in Australia there is more land than the government knows________.     

    A. it what to do with 

    B. what to do it with 

    C. what to do with it 

    D. to do what with it

C


解析:

what to do(with it)為固定結構,意為“如何處理……”=how to deal (with it)。“疑問詞+不定式”作knows的賓語。

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