I- Complete this tag question: 1. Do sit down.........? 2. He didn't pass the exam,.......? 3. It was cold yesterday,........? 4. There is something wrong,.......? 5. There won't be any trouble,...........? 6. Nothing can stop us now,............? 7. Nobody phoned while I was out,...........? 8. You have never been there before,.............? 9. The child rarely cries,...........? 10. They always go to bed at 10pm,.......?