I have to say this. "집에서 버스를 타지 못합니다" sounds very awkward in this dialogue. He should have said like this : 집 주변에 버스 정류장이 없기 때문에 버스를 타지 못합니다. Ka-young: I see. Do you walk to school? or take a bus? Chan-ho: I can't take a bus around my home. (There is no bus stop around my home) I just walk or run to school. Hahaha!