听力原文:M: Do you think Bob is serious about Mary?W: Well I've never seen him go out so o
听力原文:M: Do you think Bob is serious about Mary?
W: Well I've never seen him go out so often with the same person.
Q: What conclusion does the woman want us to draw from her statement?
(19)
A.Bob has many girl friends.
B.Bob likes Mary very much.
C.Bob seldom stays at home nowadays.
D.Bob never goes out with Mary. Questions 19 to 20 are based on the conversation you have just heard.