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    As it turned out to be a problem of no importance, we so much time looking into it, A. needn’t spend B. didn’t have to spend C. oughtn’t to spend D. needn’t have spend 【查看更多】

     

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    As it turned out to be a problem of no importance , we     so much time looking into it .

    A. needn’t spend            B. didn’t have to spend

    C. needn’t have spent        D. oughtn’t to spend

     

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