I think____of the materials I listened to at the beginning of the exam____easy A.three fourth;ar...

问题描述:

I think____of the materials I listened to at the beginning of the exam____easy A.three fourth;ar...
I think____of the materials I listened to at the beginning of the exam____easy
A.three fourth;are
B.three fourths;are
为什么选A而不选B呢?求详解

应该选B啊
在表达分数的时候如果分子大于1的话,分母都要加s
例如五分之二:two fifths