问题描述: Does your sisiter come from Beijing?(同义句) __your sister__Beijing? 1个回答 分类:英语 2014-12-16 问题解答: 我来补答 Is,from 再问: 单三前怎么能用Is? 再答: your sister是第三人称单数啊,当然用is come from= is from 展开全文阅读