__a cold morning a glass of hot milk is very good 填什么

问题描述:

__a cold morning a glass of hot milk is very good 填什么

On
在具体某一天,介词用on
当名词前有修饰词时,相当于在具体某一天.本题有修饰词cold
“在一个寒冷的一天早晨”