Question

The villagers dug many tunnels _____ they could fight against the enemies. A．by which B．th.

The villagers dug many tunnels _____ they could fight against the enemies. A．by which B．through that C．through which D．to which

Answer 1

C
试题分析：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。