III- Combine each pair of sentences to make a conditional sentence type 1.
1. People travel to work by bus. There are fewer car fumes.
2. The sewage is treated. It doesn’t pollute the water.
3. There are a lot of trees. Each person plants a tree.
4. We save thousands of trees. We don’t waste paper.
5. We have more cars. Air pollution becomes worse in the city.
Loga
Sinh Học lớp 12
