问题
选择题
There were two small rooms in the house, _____ served as a kitchen.
A．the smaller one of which
B．the small one
C．the smaller of them
D．and the smaller one of which
答案
答案：A
句中用逗号,所以是定语从句；如果改为分号或者在空格前加and,则选the smaller of them.