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外语
He ______ unwisely, but he was at least trying to do something helpful.
He ______ unwisely, but he was at least trying to do something helpful.
admin
2012-07-22
63
问题
He ______ unwisely, but he was at least trying to do something helpful.
选项
A、may have acted
B、must have acted
C、should act
D、would act
答案
A
解析
题型:语法题。情态动词+have done用来表示对过去事实的推测,may与must在肯定程度有很大的区别,must表示的是一种绝对语气。
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0
专业英语四级
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