-When is the Nation Dayof the PRC?-It's________.
问题描述：
-When is the Nation Dayof the PRC?-It's________.
A.on 1st October B.in 1st October
C.on 1st of the October D.in the 1st of October
什么时候用in?什么时候用on?
答
A
听过有种东西是固定搭配吗?
就是这样用的.
特定日期用on,如果不是准确的时间就用in,比如在五月份,in May.