问题描述： l have had lunch at school 一般疑问句 .否定式.肯定/否定回答, 1个回答 分类：英语 2014-09-25 问题解答： 我来补答 Have you had lunch at school?I haven't had lunch at school肯定回答：Yes,I have否定回答：No,I haven't 展开全文阅读
