作业帮i don't know whether you happened to have heard or i don't know whether you happened to hear?上面的两种说法那一个正确?
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/10 16:22:08
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i don't know whether you happened to have heard or i don't know whether you happened to hear?上面的两种说法那一个正确?
i don't know whether you happened to have heard or i don't know whether you happened to hear?
上面的两种说法那一个正确?
i don't know whether you happened to have heard or i don't know whether you happened to hear?上面的两种说法那一个正确?
第一种正确,第一种强调听到的结果,我不知道你是否碰巧听说了.这个“了”字是通过have heard来体现的