He" been a teacher for ten years,[hasn"t] he?括号中为什么用hasn"t请帮我解析一下
问题描述：
He" been a teacher for ten years,[hasn"t] he?括号中为什么用hasn"t请帮我解析一下
答
He's=he has 是现在完成时,结构是：主语+ has/ have + 过去分词..
反意疑问句用： hasn't he?