Question

高中英语，急！！！！！！！！

We went through a period in which communications were very difficult in the ryral areas.【为什么用in which和whose】

Answer 1

把你的句子变成两个分句，你就明白了
1 We went through a period
2 Communications were very difficult in the rural areas in that period.
然后，再把它们合并起来：
We went through a period + n that period communications were very difficult in the rural areas .
---------We went through a period in which communications were very difficult in the rural areas.
如果用whose,句子就必须改写：
We went through a period in the rural areas whose communications were very difficult 。
whose ==the ryral areas' -----乡村地区的 （成了所属关系）

Answer 2

选咱为最佳答案 然后联系咱！在百度上留言 咱用QQ语音给你解释清楚！

Answer 3

IN WHICH = WHOSE 在这里两个性质差不多
We went through a period 【in which 】communications were very difficult in the ryral areas.