题目内容：

you have to stay behind if your homework is’s finished
这句话对吗
you have to stay behind if your homework isn‘t finished

优质解答

你是想表达“如果你没有完成家庭作业,那么就必须留下来”吗?从句子结构和语法上来看,我觉得是对的,但是通常外国人是不会这么表达的.You can't leave if you don't finish your homework.You have to stay here if yo...