Why don't you walk to school?变成同意句怎么变

网友回答

Why not go to school on foot?
How/What about steping to school?
======以下答案可供参考======
供参考答案1:
why not go to school on foot
供参考答案2:
How about walking to school?
供参考答案3:
why not go to school on foot
？