问题补充:
—is it from your home to your school?
—It takes about twenty minutes by bike.
A. How long
B. How far
C. How many
D. How much
答案:
A. How long
(答案→)B. How far
C. How many
D. How much
解析:A. How long多长时间 B. How far多远的距离 C. How many多少,修饰可数名词的复数形式 D. How much多少,修饰不可数名词;句意:从你家到学校有多远?骑自行车车大约需要20分钟。故选B