We will have a party_____Saturday evening.He was born _____a cold winter morning.
问题描述：
We will have a party_____Saturday evening.He was born _____a cold winter morning.
答
2个都用on
答
on
in
答
答案：on,on
如果指的是具体某一天或有某种特征而限指的早晨/中午/晚上,介词一律用on.