Here are the best options for each question you provided:

1. What do you usually do.........................Friday evenings?
- **B. on**

2. It's ........................to have a walk along the rice fields early in the morning.
- **D. relaxing**

3. Lisa's hometown is about 250 kilometers ...........................Ho Chi Minh city.
- **B. from**

4. Jane's mom: People in the countryside often have a healthy lifestyle. - Jane:...........................
- **C. I agree. They do more physical activities**

5. Liz: ...................does John play spinning tops? - Ben: Not often, about once or twice a month.
- **D. How often**

6. Governments should prevent people ........................cutting down trees in the forests.
- **B. from**

7. Everybody should work together to keep the environment .......................
- **B. unpolluted**

8. We should send these used cans and bottles to ...........................centers.
- **A. recycling**

9. Jane: What about putting more trash cans on the streets? Mary: ...........................
- **D. That's a good idea**

Feel free to ask if you need further clarification or assistance!