单项选择题 A．He has nothing to do at that time.B．He just wants to have a break.C．He doesn't have math stuff.D．He gets a hundred on the last test.

单项选择题 A．To study together.B．To go to Elizabeth's room.C．To call Elizabeth.D．To watch TV together.

单项选择题 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.