I go to school this morning

问题描述:

I go to school this morning
this morning 前为什么不加介词,this morning 又不是副词

morning,afternoon,evening这些词语的前面如果有this,that等指示代词修饰时,就不能再用介词了
如果要用on,一定要具体的某一个时刻,比如:on the morning of Sunday等等