1,-_how far___is it from your home to the school
-about twenty minutes` walk
how far how long
因为这里是问从一个地方到另一个地方的距离,所以选how far.
how long是问世间的长短
2.my uncle usually takes___ a bus to go to work
take by on takes
句子里缺少谓语,选动词,排除by 和 on
因为是第三人称单数,所以选takes
3.how does Ken`s mother _get___home?
get get to getting gets
因为有does,所以用原形,因为是及物动词,所以不加to