--How often do you attend the evening cl
题型：选择题
问题：
--How often do you attend the evening classes?
---_____, three times per week.
A．On the whole
B．On average
C．Little by little
D．In all
--How often do you attend the evening classes?
---_____, three times per week.
A．On the whole
B．On average
C．Little by little
D．In all