问题补充：
——Could you tell me ?——It’s twenty minutes by underground.
A. how can I get to your school
B. how much it costs to get to your school
C. how far it is from your home to your school
D. how long does it take me to get to your school
答案：
A. how can I get to your school
B. how much it costs to get to your school
(答案→)C. how far it is from your home to your school
D. how long does it take me to get to your school
解析：英语宾语从句中一般为陈述语序。How怎样，how much多少钱；how far多远；howlong多长；根据下文，乘地铁大约二十分钟。可知上文提问的是距离或者所用时间，选项D为倒装语序，故选C。
