题目内容
Though his teachers were quite satisfied with his performance, he thought he ____ better if he had tried harder.
A.could have done B. should have done
C. ought to have doneD. must have done
A
【解析】
试题分析:句意:尽管他的老师对他的表现相当满意,他认为如果他更努力,他本来可以做得更好。A.could have done本可以B. should have done本应该C. ought to have done应该已经做了D. must have done一定已经做了。根据选项可知考点为情态动词表猜测的用法。根据句意,故选A。
考点:考查情态动词用法
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