问题
选择题
We went through a period_______ communications were very difficult in the countryside.
A．which
B．in which
C．whose
D．with which
答案
答案：B
考查定语从句。in which介词加关系代词，相当于when定语从句是communications were very difficult in the rural areas句意：我们经历了这样的一个时期，在那个时期中通信在乡村是非常困难的