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14.He was sorry for wasting the precious time when he _______ studied hard playing computer games at school.(  )
A.should haveB.would haveC.might haveD.must have

分析 他很遗恨,因为把在学校本应该认真学习的时间浪费在玩电脑游戏上.

解答 答案是A.本题考查"情态动词+have done"的结构.should have done是虚拟语气,表示"本应做但事实上却没有做";would have done是虚拟语气,表示"本会…";might have done 既可以表示推测"也许已经…",也可以是虚拟,表示"本可以…而实际上没有".must have done表示推测,表示"肯定已经…";根据句意可知,"本应该认真学习",由此判断答案选择A.

点评 要在正确理解情态动词的基本含义的基础上,整体理解语境中的情感态度,做出合理的判断.

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