He is very ; it is impossible to talk him into doing anything he doesn’t want to.
A. stubborn
B. curious
C. skeptical
D. gracious
网友回答
(答案→)A. stubborn
B. curious
C. skeptical
D. gracious
解析：A. stubborn固执的，B. curious好奇的，C. skeptical 怀疑的，D. gracious亲切的，和蔼的，句意：他很固执，是不可能说服他做不愿意做的事情的。所以选A。