请听第7段材料，回答第8、9题。

8. What's the probable relationship between the speakers?

A. Teacher and student. B. Classmates. C. Father and daughter.

9. What does the woman worry about?

A. Her term paper. B. The exams. C. Her health.

10. What does the man advise her to do?

A. Hand in the paper. B. Change her major. C. Do something relaxing.请听第8段材料，回答第11至13题

11. Why won't Susan go to Phoenix?

A. She didn't book a plane ticket. B. She lost her plane ticket.

C. She can't afford the trip.

12. Where did Susan probably lose her wallet?

A. In the street. B. In the bank. C. On the bus.

13. What does the man advise Susan to do?

A. To go to the police station.

B. To call the bus company.

C. To ask someone about it.

请听第9段材料，回答第14至16题。

14. What is the rent of the apartment near the park?

A. $ 400. B. $ 350. C. $ 415.

15. What is the cheapest two-bedroom apartment like?

A. It's rather noisy. B. It's very quiet. C. It's not furnished.

16. Which apartment do they prefer?

A. The one next to the supermarket.

B. The one near University Avenue.

C. The one on Fifteenth Avenue.

请10段村料、回溶第17至20题。

17. What is the man speaker probably?

A. A zoo keeper. B. A volunteer. C. An animal expert.

18. What can we learn about volunteers?