询问并回答出行方式：How do you go...? — 英语选择题
题目
Lily 住在离学校不远的地方，她每天走路去上学。Tom 问她出行方式，下列对话正确的一项是：A. —How do you go to school? —I go to school on foot. B. —How do you go to school? —I go to school by foot. C. —How do you go to school? —I go to school by walk. D. —How do you go to school? —I go to school by bus.