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：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。
