B. The woman's daughter.

C. The woman's teacher.

10. How much will the woman pay?

A. Just 100 yuan.

B. Less than 100 yuan.

C. More than 100 yuan.

听第8段材料，回答第11至13题。

11. What is the woman tired of?

A. Using packing cases as seats.

B. Sitting on secondhand chairs.

C. Buying things at street markets.

12. What does the man worry about?

A. They cannot find new chairs.

B. New chairs are too expensive.

C. Old chairs are not comfortable.

13. When does the market open?

A. On Thursdays. B. On Sundays. C. On Saturdays.

听第9段材料，回答第14至16题。

14. What is the man most likely to be?

A. A tourist traveling to a seaside town.

B. A reporter from a newspaper press.

C. A clerk of the traveling agency.

15. What was the woman satisfied with?

A. The room of the hotel that they stayed in.

B. The distance between the hotel and the beach.

C. The time when they arrived at the seaside town.

16. How often does the woman go out for holidays?

A. At least twice a year.

B. At least once a year.

C. At least once a month.

听第10段材料，回答第18至20题。

17. What's the passage mainly about?

A. Air pollution outside.

B. Indoor air pollution.

C. The disease caused by the polluted air.

18. Where did some of the worst indoor air pollution happen?

A. In super countries.

B. In developed countries.

C. In places where wood and coal were used for cooking.

19. How many diseases could be caused by breathing harmful indoor air according to the passage?

A. 5. B. 6. C. 7.

20. What would be probably talked about next?

A. Causes of indoor air pollution.

B. Problems of indoor air pollution.

C. Ways to solve the problem of indoor air pollution.