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外语
What a pity! Considering his ability and experience, be ______ better.
What a pity! Considering his ability and experience, be ______ better.
admin
2013-04-22
80
问题
What a pity! Considering his ability and experience, be ______ better.
选项
A、needn’t have done
B、must have done
C、couldn’t have done
D、couldn’t have done
答案
D
解析
考查“情态动词+完成体”的用法。might+have done表示“本可能做却没有”;must+have done只用于肯定句中,表示对过去情况的肯定推测,意为“想必,一定”;needn’t have done一般用于否定句表示“本不必做的事情却做了”;couldn’t have done表示“不可能做了某事”。此句中表示从他的能力和经验考虑,他本可能做得更好,故选D。
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0
专业英语四级
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