题目内容

It is said that _____ of the students like to help their parents with the housework
A．third-fifthsB．three-fifths
C．thirds-fifthD．three-fifth
B

试题分析：英语中一般用基数词表示分数的分子，用序数词表示分数的分母。当分子是一时，分数的分母用单数形式，在表示分数时，当分数的分子大于一时，分数的分母要用复数形式。由分数修饰的主语后面谓语动词的数，和被修饰主语的单复数保持一致。据说有五分之三的学生喜欢帮助他们的父母做家务。故选B。
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