Don’t waste your words any more; she is as as a mule (骡子) and no one can persuade her.
A. reliable
B. stubborn
C. determined
D. tired
网友回答
A. reliable
(答案→)B. stubborn
C. determined
D. tired
解析：句意：不要再浪费你的口舌了；她非常固执，没人能说服她。reliable可靠的；stubborn固执的；determined决定的，有决心的；tired累的。