问题
选择题
—They have built another new library for the students
—About_____ of the books in their library are written in English．
A．four fifth
B．four fifths
C．fourth fifths
D．fourths fifth
答案
答案：B
英语分数，分子读做基数词，分母读做序数词。如果分子是一，则分母直接读做序数词；如果分母大于一，则序数词要加s变成复数。
如:2/3 读做 two thirds.故选B,五分之四。