对划线部分提问tom often goes to shool _on_foot_.it took tom _two_ hours to do his homework yesterday.
问题描述：
对划线部分提问tom often goes to shool _on_foot_.
it took tom _two_ hours to do his homework yesterday.
答
On foot 提问是 how does tom often go to school tow 提问是how many hours did tom spend to do his homework yesterday?