问题描述: You must stop at the red light变成否定句 1个回答 分类:英语 2014-09-22 问题解答: 我来补答 You shouldn't stop at the red light.你不应该在红灯时候停下来must的否定形式是shouldn't ,而不是mustn't.这是特殊用法.希望能帮助到您 展开全文阅读