人教版九年级下册英语南方新课堂Unit13SectionA答案(2)

5Unit13SectionA第五题答案

6Unit13SectionA第六题答案

7Unit13SectionA Grammar Focus第一题答案

1. We're trying to save the earth.

2. The river used to be so clean.

3. The air is badly polluted.

4. No scientific studies have shown that shark fins are good for health. .

5. We should help save the sharks.

8Unit13SectionA Grammar Focus第二题答案

9Unit13SectionA Grammar Focus第三题答案