关于这几句话中the的用法

问题描述:

关于这几句话中the的用法
I was at church on sunday
I was at the office on monday
My son was at school on Tuesday
My wife was at the butcher's on wednesday
为什么这4句话中,有的可以加the,而有的不需要加呢?

都是有区别的:
at church 做礼拜 at the church在教堂
at school去上学 在上课 而没有at the school的说法,或者说不常用.
大部分都是固定搭配,记住各自的意思就可以了
不过要注意啊,有没有the意思大相径庭.