问题补充：
一How long does it take you to get to school?
一
A. Five kilometers
B. Every day
C. By bike
D. Around an hour
答案：
A. Five kilometers
B. Every day
C. By bike
(答案→)D. Around an hour
解析：Five kilometers为距离
Every day为频率
By bike为交通工具
Around an hour为时间
而How long问的是时间
故选D
