Ответ:
3. Who gave you a key?
4. What happened?
5. Who told you something?What did Diane tell you?
6. Who does this book belong to ? What belongs to anybody?
7. Who lives in that house?
8. Who fell over something?
9. What fell on the floor?
10. What does this world mean?
11. Who borrowed the money from anybody ? What did you borrow from anybody?
12. What are you worried about ? Who is worried about?