when were you in the pub和when did you in the pub有何不同?如题,were可否换成did?语法上有错误吗?各自的中文翻译是什么意思?
问题描述：
when were you in the pub和when did you in the pub有何不同?
如题,were可否换成did?语法上有错误吗?各自的中文翻译是什么意思?
答
这两句的不同在于：后一句是错的.问句中 did这个助动词后面某处一定会出现一个实义动词,而这句里没有动词了.