in the days 还是on the days?

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/30 08:16:05

in the days 还是on the days?
1 The days on which black people in the country could not travel without a pass are gone forever.
2 I will never forget the days in which we worked together.
为什么第一个用on which 第二个用 in which

on the days 表示特指,也就是说话人都知道的而第一句说的是在这个国家里黑人旅行需要通行证的日子已经过去了,是特指那些需要通行证的日子
in the days 指一段时间
和in the morning与 on the morning是一样的道理

in the days 还是on the days? on the days?in the days? on cold days与in the days区别 in working days ,还是on working days in those days还是on those days in the old days 是in rainy days还是on rainy days? On hot days we often (b ) in the river.填空 However,the two countries in it on different days on cold days与in the day区别 on,the,different,days,in,different,countries,holidays,are,na On hot days we often ( ) in the river.填空