He______unwisely, but he was at least trying to do something helpful.A、may have

游客2023-11-03 57

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

解析虚拟语气题。may have done用来表示说话人推测某人在过去可能做过某事，而实际上说话人并不确定。must have done用来表示说话人推测某人在过去曾经做过某事，说话人对其推测的内容十分肯定，因此本题应该选[A]。

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