EX3: Thêm phần đuôi cho các câu hỏi sau. 1. You don't know where Ann is, ..............? 2. They haven't seen this film, .................? 3. You wouldn't tell anyone about it, ...............? 4. He'd never seen you before,...................? 5. Let's go out for a walk, .......................? 6. This is your book,..................? 7. I am supposed to be here, .............? 8. There is a meeting tonight, ........................? 9. Tom won't be here late, ....................................? 10. You 're tired,............................? 11. You haven't lived here long, ..................? 12. You came in a sports car, ...........................? 13. These cakes look good, ...........................? 14. You can speak German, .......................? 15. You couldn't do me a favor, ...................? giúp mình ạ giải thích rõ ràng đc ctlhn