听对话,回答问题。 |
1. What are they talking about? |
A. How to go to school. B. How to protect the environment. C. How to recycle waste paper. |
2. How many ways did they talk about? |
A. Four. B. Two. C. Three. |
3. Which of the following is the last way? |
A. Saving money. B. Riding a bike. C. Using paper or cloth bags instead of plastic ones. |