参考答案 One Possible Version:

Walking to school is wonderful way to exercise. I think it’s good for health and it’s safe. When we walk with our classmates, we can talk about something interesting and know each other better. Also, we can help each other. What’s more, if we walk, our parents don’t have to send us to school. We can learn to look after ourselves. As a result, there will be fewer cars in the city. Then the streets are no longer crowded. I hope more and more students will go to school on foot.