问题
选择题
The villagers dug many tunnels _____ they could fight against the enemies.
A．by which
B．through that
C．through which
D．to which
答案
答案：C
题目分析：考查定语从句：句意：村民们挖了很多隧道通过这些隧道他们可以和敌人斗争。先行词是tunnels，定语从句中缺少的是through tunnels，用介词through+关系代词which引导定语从句，选C。
