Do you still remember the day ___you first came to shanghai?

问题描述:

Do you still remember the day ___you first came to shanghai?
A.that B.in which C.on which D.which 为什么介词用on

on the day
星期,日,月,都要用on 比如:on that day,on Friday,on March
年用in 比如:in 1999.
但是如果年月日一起就用on,比如:on the 1st,1999.(只要有日,就用on)