A-A+
He ______unwisely but he was at least trying
问题详情
He ______unwisely, but he was at least trying to do something helpful.
A．may have acted
B．must have acted
C．should act
D．would act
参考答案
正确答案：A
解析：情态动 + 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。
