--- How do you attend the evening classes?
--- , three times per week.
A. long; On the whole
B. often; On average
C. soon; Generally speaking
D. much; In all
网友回答
A. long; On the whole
(答案→)B. often; On average
C. soon; Generally speaking
D. much; In all
解析:情景交际。根据下文答语,three times per week一周三次,可知上文问的是频度,故选B。