问题描述: One fifth of the population here ( ) farm workers .填is are? 1个回答 分类:英语 2014-10-15 问题解答: 我来补答 are 例句About one-third of the adult homeless population are veterans 再问: 只能用"are"吗?还是两个都能用,但are用的更多一些? 再答: one fifth of the uninsured population is able to afford insurance 这是用单数的情况。 基本都用ARE。 展开全文阅读