Fill in the correct preposition .
1. What information are you interested ....?
2. Which vacation did John become ill....?
3. Who have you named the child...?
4. Who did you destroy a picture...?
5. What did you travel to London...?
6. I was astonished at the patience she spoke ...?
7. Do you know the hostel they stayed ....?
8. What time will you arrive home ....?
9. How long has it been snowing...?
10. What do you eat salad...?
11. What age did she leave school...?
12. Whom did you sit .... .... at the party...?