Question

Answer 1

1. If we keep the environment clean, we won't  suffer from pollution.

2. I haven't visited my native village since I was ten.

3. Self-driving cars drive more carefully than humans.

4. There are only a few people who still want to stay in the village.

5. Los Angeles has a population of over 3 million.

6. Flying cars will be used to travel across the globe some day.

7. Developed countries don't have as many populations problems as developing countries.

8. Veronica is a good friend of mine.

Answer 2

help me , please 

Answer 3

1. If we keep the environement clean, we won't suffer from pollution

2. I haven't visit my native village since I was ten

3. Self - driving cars drive more carefully than human