问题补充:
--- do you go bike riding with your father? ---Once a week.
A. How many
B. How far
C. How often
D. How much
答案:
A. How many
B. How far
(答案→)C. How often
D. How much
解析:How many 多少,后跟可数名词复数,How far 询问距离多远,How often 表示频率,多久一次,How much 多少,后跟不可数名词,经常询问价格,句意:你和你的父亲多久骑自行车旅行一次。一周一次。所以选C。