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.
1. If people travel to work by bus , there will be fewer car fumes.
2. If the sewage is treated , it won’t pollute the water.
3. There will be lot of trees if each person plants a tree.
4. We will save thousands of trees if we don’t waste paper.
5. If we have more cars , air pollution will become worse in the city.
1. If people travel to work by bus , there will be fewer car fumes.
2. If the sewage is treated, it won’t pollute the water.
3. There will be a lot of trees if each person plants a tree.
4. We will save thousands of trees if we don’t waste paper.
5. If we have more cars, air pollution will become worse in the city.
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câu điều kiện loại I: If S V(HTĐ), S will/may/should Vnt.