A:() do you go to the zoo B:Every month A.How long B.What C.How often

问题描述:

A:() do you go to the zoo B:Every month A.How long B.What C.How often

C

选C。对时间频率进行提问用how often

C
对频率提问用 how often "多久”
不明白的再问哟,请及时采纳,多谢 !

C.How often