Question

---       do you go bike riding with your father?   ---Once a week.

A．How many

B．How far

C．How often

D．How much

Answer 1

C

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。