定语从句中when和where的用法
I will never forget the day when I first met you on the seashore.
I will never forget the days which/that we spent together in Xueyao Middle School.
这两个句子中为什么分别用了不同的引导词?什么时候用when,什么时候用which/that?
This is the hospital where my mother works.
This is the hospital which/that we visited the day before yesterday.
什么时候用where,什么时候用which/that?