Early __the moring of May 1,we started off __the mountain village

问题描述:

Early __the moring of May 1,we started off __the mountain village
A in for B on for
不是说 具体的某一天用On吗?这题为什么选A

因为,这句话指的是早上
假如,没有指时间,就用 on
比如
On May 1st,we started off.
还有,必须用 first,may 1 是错误的,