1. Please show us what you have written.
2. Can you tell them when the concert starts?
3. Do you know which language he can speak?
4. We don't know who has done it.
5. None of them knows whose car is that
6. Can you tell me where he lives?
7. We don't know when the train arrives.
8. I'm going to tell you why I like this place.
9. Who can tell me how to get to the center?
10. Do you want to know how many exams we will have?
11. Can you see who is singing?
12. Please tell us what you know about John Lennon.
13. Please tell them that the shop will be closed tomorrow.