The doctor was very impolite to the patient,( )of course,made things even worse.
问题描述：
The doctor was very impolite to the patient,( )of course,made things even worse.
A.who B.whom C.which D.what
哪个,为啥?
答
C.which
the doctor was very impolite to the patient这件事情made things even worse.所以非限制性定语从句用which指物