问题
选择题
Finally he reached a lonely island ________ was completely cut off from the outside world.
A．when
B．where
C．which
D．whom
答案
答案：C
题目分析：考查定语从句：句意：最终他来到一个完全和外界隔绝的孤岛上。这是定语从句，先行词是a lonely island，定语从句中缺少主语，用which引导定语从句。选C。