问题描述： You have to be there on time()()反意疑问句 1个回答 分类：英语 2014-11-21 问题解答： 我来补答 You have to be there on time,(don't) (you)?这里的 have 是实意动词,做谓语,不是助动词.所以变成疑问句的时候,要用助动词 do.比如变成一般疑问句：Do you have to be there on time? 展开全文阅读
