As a rule, domestic servants doing odd jobs are paid ______.
A. by the hour B. by hour C. by an hour D. by hours
As a rule, domestic servants doing odd jobs are paid ______.
A. by the hour B. by hour C. by an hour D. by hours
A
by与the连用,可用于表示“以……为标准或单位”。又如：by the week, by the year, by the thousand等。注意：按重量计应表达为by weight。