I was born()a warm spring morning()1997 in Panxian、

问题描述:

I was born()a warm spring morning()1997 in Panxian、
A in on B on in C on on D in in
I met him()the airport()Nation day
A at in B at on C on in D on on

B on in
B at on
请在客户端右上角评价点“满意”即可,第一个为什么是on,in?具体某一天, 某一天的早上,下午,晚上用on 1997 是个时间段, 用in