问题补充：
--- Could you tell me ?
--- It’s twenty minutes by underground.
A. how can I get to your school
B. how long does it take me to get to your school
C. how far it is from your home to your school
D. how much it costs to get to your school
答案：
A. how can I get to your school
B. how long does it take me to get to your school
(答案→)C. how far it is from your home to your school
D. how much it costs to get to your school
解析：句意：--你能告诉我从你家到学校多远吗？--乘地铁需要20分钟。A. 我如何去你的学校。B. 去你们学校需要多长时间。C. 你的家离学校多远 D. 去你们学校需要多少钱 根据答句，乘坐地铁需要20分钟描述的是距离。故选C.
