They work day and night; however, of the money they make goes to their so-called eldest brother.
A. four-fifth
B. four-fifths
C. four-five
D. four-fifths
网友回答
A. four-fifth
(答案→)B. four-fifths
C. four-five
D. four-fifths
解析：这题考查分数的表达：分子用基数词，分母用序数词，如果分子大于一，分母用复数，五分之四就是：four-fifths 选B。