--How often do you go to the library?--_
题型:选择题
问题:
--How often do you go to the library?--______.
A.In two days
B.Every few days
C.Each third day
D.Every a few days
--How often do you go to the library?--______.
A.In two days
B.Every few days
C.Each third day
D.Every a few days