找出十处错误I usually walk to school on foot.But sometimes I go to

找出十处错误
I usually walk to school on foot.But sometimes I go to school by bus.When my father have time,he takes me to school in car.And my father is very busy,so he don't take me to home.my friend Sam goes to school by bus,he think its cheap and it takes only about ten minute.Sometimes he rides to school.But these days he has to take bus because his bike is broken.