___ that day,lots of childrens go out in the open air.A.In B.On C.At D.To
问题描述：
___ that day,lots of childrens go out in the open air.A.In B.On C.At D.To
答
in that day,lots of childrens go out in the open air.
答
（B.On） that day,lots of children go out in the open air.
在那一天,许多孩子出来到户外.
on用来表示在具体的某一天.