单选题
He _____ unwisely, but he was at least trying to do something helpful.无
A、
may have acted
B、
must have acted
C、
should act
D、
would act
【正确答案】
A
【答案解析】
句意: 他的行为也许不明智, 但是他至少尝试着做一些有帮助的事了。 对过去情况的可能推测, 应用may have done, 故应选A。
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