1. If we recycle more, we will help the Earth.

2. If the government fines factories heavily, they will not dump waste into rivers.

3. If people travel to work by bus, there will be fewer car fumes.

4. If we don't waste paper, we will save thousands of trees.

5. If we use water carefully, more people will have fresh water.

6. If the land is polluted, the farmers will be unable to grow crops.

7. If people build too many telephone poles and overhead power lines, there will be visual pollution.

8. If people use contaminated water for cooking, their health will be badly affected.

9. If we place dustbins in many places, people will not throw rubbish everywhere.

10. If the factory installs a new filtration system, the industrial waste will be well-treated.

=>

1. If we recycle more, we will help the Earth.

2. Factories won't dump waste into rivers if the goverment fines them heavily.

3. If people travel to work by bus, there will be fewer car fumes.

4. We will save thousands of trees if we don't waste paper.

5. If we use water carefully, more people will have fresh water.

Câu đk loại 1: If S Vs/es, S will (not) V