There are two rooms in the apartment serves as a kitchen.A. the smaller of themB. the sm

问题补充：

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：

A. the smaller of them

B. the smallest of which

(答案→)C. the smaller of which

D. smallest of which

解析：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。