3. hãy thêm từ won't if cho hợp lý 1. We will plant more trees. The air will be fresher. ________________________________________________________ 2. We will go to school by bus. We will protect the environment. ________________________________________________________ 3. I will use recycled products. I will save money. ________________________________________________________ 4. People will turn off the tap when washing their hands. They will save water. ________________________________________________________ 5. We will travel more by public transport. We will reduce harmful gases. ________________________________________________________