（二）听对话和问题，根据所听内容，选择最佳答案。对话和问题都读两遍。
6. A. It’s in front of the post office.
B. It’s between the bank and the post office.
C. It’s next to the supermarket and across from the bank.
7. A.David． B. Peter． C. Linda．
8 A. He was reading at the library．
B. He was playing basketball on the playground．
C. He was doing his homework at home．
9. A. For four days. B. For three weeks . C. For two months．
10. A. The river is badly polluted．
B. There is no water in the river.
C. The water is too deep．
