问题描述: A:() do you go to the zoo B:Every month A.How long B.What C.How often 1个回答 分类:英语 2014-10-03 问题解答: 我来补答 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 ! 展开全文阅读