was born_______the morning of Oct.1 2000?用in还是on
问题描述：
was born_______the morning of Oct.1 2000?用in还是on
答
on,因为后面有年月日,有日的一定用on
was born_______the morning of Oct.1 2000?用in还是on
on,因为后面有年月日,有日的一定用on