ＩＩ． 听对话和问题，根据所听内容选择正确答案。对话和问题读一遍。（每小题1分，共5分）
( ) 6. A. Water pollution. B. Air pollution.
C. Food pollution.
( ) 7. A. 4. B. 16. C. 12.
( ) 8. A. Go to the lecture. B. Go to the cinema.
C. Go shopping.
( ) 9. A. At home. B. In a restaurant.
C. In a zoo.
( ) 10. A. Make a telephone call. B. Listen carefully.
C. Go to school.
