A、His diet. B、His habit. C、His living environment. D、His inheritance. D细节题。理发师提到男士的发质时，男士解释说，他的发质问题是由家庭遗传所致(It runs in my family

M: I need a haircut. But you look pretty busy today. Do you have an opening for me?
W: Yes, we do. I can cut your hair right now if you like. Do you need a shampoo too, or just a
haircut?
M: Just a haircut. I washed my hair this morning.
W: Alright.[12]I will have an assistant wet your hair. Then I can start. Please step over there. How would you like your hair cut today?
M: Well, I had a haircut eight weeks ago. So my hair is pretty long. However, I want to have the same style as the last time.
W: I recommend you leave it a little longer on top. But we should take in the back and sides a bit
more. That’s more fashionable now.
M: Alright You are the expert I’m happy to have your recommendation.
W: And do you usually part your hair along here?
M: Yes.
W: Alright. I know just what to do. [13]Your hair seems quite dry, you know. And I see some split ends.
M: Yes, I know my hair is quite thin. It runs in my family. Everybody has very thin hair.
W: The problem is the split ends. They make your hair look even frizzier.
M: I don’t know what to do with it.
W: Well, it’s easy. Don’t blow-dry your hair for so long after you shower.[15]Let it dry naturally,
and then you won’t get split ends.
M: Oh really? I will try. Thanks.
12. What should the hairdresser do with the customer’s hair before cutting his hair?
13. What is the problem with the man’s hair?
14. What causes the man’s hair problem?
15. What does the hairdresser suggest the man do to solve his hair problem?