how far.该答案说的 twenty minutes' walk是一段路程的长短 .
如果问- - - is it from your home to walk to our school?
About twenty minutes' .
就用how long
how far.该答案说的 twenty minutes' walk是一段路程的长短 .
如果问- - - is it from your home to walk to our school?
About twenty minutes' .
就用how long