- do you go to the English club?Once a week.A. How oldB. How oftenC. How muchD. How many

问题补充：

- do you go to the English club?

Once a week.

A. How old

B. How often

C. How much

D. How many

答案：

A. How old

(答案→)B. How often

C. How much

D. How many

解析： 本题回答语表示的是频率，对此提问的用how often，故本题选B。