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I have no idear at all __he wrote the letter--it isn't dated

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/07/20 03:05:13
I have no idear at all __he wrote the letter--it isn't dated.为什么填when 而
I have no idear at all __he wrote the letter--it isn't dated.为什么填when 而不填why?
下文有“it isn't dated” “没有标明日期”,可见指的是时间.指不知道他是什么时候写的这封信