There are two small rooms in the house, serves as a kitchenA. the smaller of whichB. the

网友回答

(答案→)A. the smaller of which
B. the smallest of which
C. the smaller of them
D. the smaller one
解析：从结构看是非限定性定语从句，排除C、D（如果句子中间的逗号改成句号，则C、D正确），又因为是两者之间用比较级，排除B。