问题
选择题
There are two rooms in the apartment, ________ serves as a kitchen.
A．the smaller of them
B．the smallest of which
C．the smaller of which
D．smallest of which
答案
C
题目分析：考查定语从句：句意：公寓里面有两个房子，小的那个做厨房用。首先 是有两个房子，不是三个或三个以上，所以不用最高级，排除B、D。因为是定语从句，所以用名词+of+which引导定语从句，选C。