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    --Jiangsu athletes did extremely well in the 10th National Games. --Yes, they very hard, or they such great achievements. A. must have been trained; couldn't have got B. must have trained; should have got C. must have been trained; mustn't have got D. should have been trained; couldn't have got 【查看更多】

     

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    --Jiangsu athletes did extremely well in the 10th National Games.

    　 --Yes, they __ very hard, or they __ such great achievements.

    　 A. must have been trained; couldn't have got

    　 B. must have trained; should have got

    　 C. must have been trained; mustn't have got

    　 D. should have been trained; couldn't have got

     

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