问题
选择题
– ________ do you hang out with your friends?
– About once a week.
A. How soon B. How often C. How long
答案
答案：B
题目分析：A. How soon多久以后，B. How often多久一次，C. How long多长时间。hang out闲逛，句意：你多久和你朋友出去逛一次？大约一周一次吧。根据答语回答的是频率，对频率提问用how often，故选B。