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He ______ unwisely, but he was at least trying to do something helpful.A、may hav
He ______ unwisely, but he was at least trying to do something helpful.A、may hav
游客
2024-10-08
4
管理
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
情态助动词+have done用来表示对过去事实的推测,may与must在肯定程度上有很大的区别。
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