My home is 5 km far from my school.和My home is 5 km far away from my school.哪个对

问题描述:

My home is 5 km far from my school.和My home is 5 km far away from my school.哪个对
My home is 5 km away from my school.对吗

都不对!有数无far 只能说My home is 5 km away from my school.