About( ) of the students like keeping diaries in English in our class.A,two third B,two thirds

题目

About( ) of the students like keeping diaries in English in our class.A,two third B,two thirds
C.second three D,two three是什么意思,最好详细些,我是初学者
keeping和diaries

答案

B表示三分之二 老师说了一个最简单的方法①子基母序（分子是基数词,及one,two,three……分母是序数词,及first,second,third……）②子复母复（当分子是复数的时候,分母要加s变为复数）由此推ACD都是英语中错误的用法...