-do you have out with your friends?----Once a week.A. How longB. How oftenC. How manyD

问题补充：

---- do you have out with your friends?

----Once a week.

A. How long

B. How often

C. How many

D. How soon

答案：

A. How long

(答案→)B. How often

C. How many

D. How soon

解析：句意：你多长时间和你的朋友出去一次？一周一次。A.How long“多远”；B.How often“多长时间一次”，对频率进行提问；C.How many“多少”；D.How soon“多久”。故选B。