1. How often ..... you play chess ?
2. You know her sister, ... ?
3. You haven't seen him yet, ... ?
4. I'm too short, ... ?
5. It's going to be a nice day, ... ?
6. You don't speak English, ... ?
7. We're going home, ... ?
8. Will you wait for me ... I arrive ?
9. They can swim, ... ?
10. You can't be serious, ... ?