( )have you been a great volunteer?A.How ohten B.How long C.How far D.Howfar

问题描述:

( )have you been a great volunteer?A.How ohten B.How long C.How far D.Howfar

B

您好!
(B)have you been a great volunteer?
A.How ohten B.How long C.How far D. Howfar
解释:问时间多长用How long ,所以用B

选择B.
括号外的中文意思是:你做伟大的志愿者
推理应该是填入多久即how long.
其他几个意思:
how often :多久一次,强调频率
how far:多远,强调距离