--- How did you pay the workers? --- As
题型:选择题
问题:
--- How did you pay the workers? --- As a rule, they were paid ______.
A.by hour
B.by the hour
C.by hours
D.by an hour
--- How did you pay the workers? --- As a rule, they were paid ______.
A.by hour
B.by the hour
C.by hours
D.by an hour