问题补充:
---do you have a sports meeting?
---Twice a year.
A. How soon
B. How often
C. How long
D. How far
答案:
A. How soon
(答案→)B. How often
C. How long
D. How far
解析:句意:--你们举行运动会多久一次?--一年两次。根据答语得知是频率(一年两次),how soon多久(常对将来的时间来提问);how often 多久一次(对频率提问);how long多长时间(对段时间提问);how far多远(对距离提问)。故选B