He _____ unwisely, but he was at least trying to do something helpful.
考试：军队文职人员招聘
科目：英语言文学 (军队文职)（在线考试）
问题：
A：may have acted
B：must have acted
C：should not act
D：would not act
答案：
解析：
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He _____ unwisely, but he was at least trying to do something helpful.
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