1. That’s the postman, isn't that? 2. Not a very good novel, isn't it? 3. They promised to repay us within two months isn't they? 4. It is not warm, isn't it? 5. You didn’t meet Jane, did you? 6. John gave you an envelope, didn't he? 7. You haven’t seen my keys anywhere, have you ? 8. Let’s go for a walk, shall we? 9. You never say what you are going to do, don't you? 10. There is little we can do about it, isn't there ?