were you at the butcher's

问题描述:

were you at the butcher's
no i wasn't
I was at the greengrocer's
为什么在肉店,杂货店的后面都要加's呢?
我还有一个问题,就是在一般过去式里有没有什么特别要注意的地方?

at the butcher's 在肉铺,at the tailor's 在裁缝店,at the doctor's 在诊所,to the teacher's到老师办公室,to your uncle's 去你叔叔家等,都是常见搭配.