The murder happened in an old building, beside the city police station.
A. which are
B. it is
C. which is
D. them are
网友回答
A. which are
B. it is
(答案→)C. which is
D. them are
解析：本题考查短语从句。句中先行词为an old building，在从句中作beside的宾语，故用关系词which。句意：谋杀发生在一座老建筑物，在一个城市警局旁边。