I know how far is it from your home to school 这句为什么是错的?

I know how far is it from your home to school 这句为什么是错的? How far is it from your home to your school? Do you know How far is it from our school to your home?合并为主从 How far is it from your home to the school? 英语连词成句 home school far from it is how your to your 英语连词成句《要中文》 it,how,is,from,home,school,to,your,far 连词成句（英语）：school,your,from,it,is,how far,home,to, 为什么是How far is it from your school to your school.It,s twent how far is it from your home to school?it`s not very far.it how far is it from your school to your home 里from your schoo how far is it from his home to school 的同意句是什么 ---how far is it from your home to your school ---it's about