问题描述: tom is a student 和they are teachers改为一般疑问句有yes和no的回答拜托了各位 1个回答 分类:英语 2014-12-14 问题解答: 我来补答 Is Tom a student Yes ,he is No,he isn't are they teachers?yes ,they are no,,they aren't 展开全文阅读