【题目】What do the speakers think of Carl?
A. Modest. B. Kind. C. Stubborn.
在线课程【答案】C
【解析】
W: Carl does not pay attention to anybody. You are wasting your time in persuading him.
M: He is old enough to make up his own mind, but it is really hard to persuade him.
此为听力题，解析略。