问题描述： Both of the children are in Grade 5.(改错） 1个回答 分类：英语 2014-10-03 问题解答： 我来补答 Both of the children are in Grade 5.---------->All of the children are in Grade 5.both只能说“两者都”；all则是“三者或者三者以上都” 展开全文阅读
