听力原文：M: So what's your trouble?
W: Well, doctor, ,I haven't been feeling well lately. My biggest problem is that I'm having trouble sleeping.
M: Have y6u tried any of the sleeping medications available?
W: I've tried one or two, but they don't seem to help.
M: How long have you had this problem?
W: About half a year—it's been rather a long time now.
M: Are you suffering from an unusual level of stress in your life lately?
W: Not more than usual. My biggest worry is the fact I can't sleep.
M: Well, some people don't need as much sleep as others.
W: But I feel tired all day, so it is a problem for me.
M: Have you been experiencing any other symptoms?
W: I've also had a lot of indigestion lately.
M: Well, you are a little overweight, aren't you?
W: Yes. And I've gained about seven kilograms this past year.
M: You really should try to lose at least that extra weight. Do you get much exercise?
W: No, not very much.
M: Physical activity is very important.
W: So what do you recommend, doctor?
M: I will give you some medication for your insomnia and your indigestion. But I also recommend that you begin a regular exercise program.
W: But I have neither the time nor the money to go to a gym.
M: You don't need to go to a gym. A simple walking program would be very beneficial for you. I think you'll find that diet and exercise will be very helpful in taking care of your recent complaints.
(23)
A．Her taking improper sleeping medications.
B．Her having unusual stress lately.
C．Her having a poor digestion.
D．Her having insufficient physical activities.