13. What are the speakers mainly talking about?

A. A dream. B. A forest. C. A light.

14. Why does the man look bad?

A. She was frightened by someone.

B. She stayed up late last night.

C. She didn’t sleep well last night.

15. What do we know about the light?

A. It was a blue light.

B. It was changing all the time.

C. It looked like the face of an old woman.

16. What happened to the woman when she tried to run away?

A. She saw an old man.

B. She couldn’t move.

C. Her whole body shook.

听第10段材料，回答第17至20题。

17. Who is the speaker talking to?

A. Patients. B. Travellers. C. Traders.

18. What do we know about American doctors?

A. They always have much to do.

B. They seldom stay in their offices.

C. They take better care of foreigners.

19. What should people do when they are seriously hurt and alone?

A. Call 911.

B. Ask the police for help.

C. Check with the hotel managers.

20. Why are people often sent to the hospitals?

A. To pay medical bills.

B. To receive health insurance.

C. To get better medical service.