单项选择题

听力原文：W: Now, uh...may I ask you a few personal questions, say, about your health and your family?
M: Sure. Go ahead.
W: Here's a list of common illnesses. Can you tell me which of them you've ever suffered from'?
M: Yes, let me take a look. Hmm ..., measles. That's the only one I've ever had. Yes, measles.
W: when?
M: Oh, a long lime ago.
W: Do you member how old you were'?
M: Let's see... I must have been...oh.., about ten years old. Yes, I think I was ten.
W: I see one more question. Now...uh...do you mind if I want to know something about Your family?
M: No. As a matter of fact, I've a lovely wife, with 3 children, 2 girls and a boy. I'm glad to say that that we really enjoy our happy life, with my daily work for a company, and Mary's care of the kids she loves so much at home. I love my job, which involves lots of travel all over the States, and implies lots of meetings with interesting people. Every year, my wife end I go on an overseas holiday, leaving the kids behind under the care of the babysitter.
W: It sounds terrific. And what you have said implies that an average working American can afford a yearly overseas holiday.
M: You might say so. Ours belongs to what is called 'an American middle class family'.
W: Well, have you any idea of how much such a family earns yearly?
M: Around ＄20,000.
W: Well, I've no more questions. Thank you very much for your answers.
(20)
A．His family
B．His health and family
C．His health
D．Its health and income