-a year does your school have sports meetings?-- Twice a year.A. How oftenB. How so

问题补充：

---- a year does your school have sports meetings?

---- Twice a year.

A. How often

B. How soon

C. How long

D. How many times

答案：

(答案→)A. How often

B. How soon

C. How long

D. How many times

解析：本题回答语表示的是频率，对此提问用how often，故本题选A。