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    We to repair the machine, now it works very well. A. tried B. did our best C. tried our best D. managed 提示:从答案及语境入手.周密考虑. 【查看更多】

     

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    We _______ to repair the machine, now it works very well.

    A. tried　　　　　 B. did our best　　 　 C. tried our best　　 　D. managed

     

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