您要查找的是不是：
- 他们不是教师，对吗? They are teachers, are not they?
- 他们不是原来那些人了。"扳道工说,"这是一次对开列车。 These are not the same ones,"said the switchman."It is an exchange.
- 不是 (n) blame or fault
- 他们不是工程师，对吗? They are not engineers, are they?
- 我不是教师,但这是一个参加工作的学长总结的,应该对我们大学生很有帮助的. Are you a teacher ? You classic advices may help me in the future !
- 他们不是在造桥，对吗? They are not building a bridge, are they?
- 你是教师吗?是的，我是。（不，我不是。） Are you a teacher? Yes, I am. (No, I'm not.)
- 他们不是焦虑的向上爬的人，他们不会对物质性的东西难舍难分。 They are not anxious social climbers, and they have no devotion to material things.
- 他们不是保安吗? Aren't they security guards?
- 有点儿夸张,对吗?你觉得是不是太过了? It's a little extreme, right? Do you think it's too much?
- 不顾草是湿的，他们不是坐在地上。 They sit on the grind in spite of the wet grass.
- 你是教师吗？是的，我是。（不，我不是。） Are you a teacher? Yes, I am. (No, I'm not.)
- 他们不是工人吗? Aren't they workers?
- 科林斯先生：这不是你的桃子，对吗? Mr. Collins: This is not your peach, is it?
- 他们不是学生吗? Are not they students?
- 我知道他长得不错,可是人却不是很聪明,对吗? I know he's good-looking, but he's not exactly the sharpest knife in the drawer, is he?
- 他们不是还要查验出境许可证吗? Won't they ask for an exit permit?
- 他们不是不知道他们是在同技术超群的人竞争。 They are not unaware that they are contesting with a walk-away winner.
- 他们不是从丹麦来的吗? Do not they come from Denmark ?
- 我很乐意，但是只要他们不是太年轻。 I'd be happy to,as long as they are not too young.
