问题补充:
His father was really a person. Once he made up his mind, nothing could change it.
A. clever
B. stubborn
C. brave
D. familiar
答案:
A. clever
(答案→)B. stubborn
C. brave
D. familiar
解析:形容词辨析,A聪明的;B固执的;C勇敢的;D熟悉的。句意:他的父亲真是一个固执的人,一旦他下定了决心,没有什么可以改变它。根据后半句可知是很固执,不愿意改变自己的主意,故B正确。