1. I don't know where to visit this summer vacation
2. Could you tell me who to ask for advice?
3. She wondered what to write in the final essay
4. I have no idea who to contact in case of emergency
5. They can't decide when to leave for America
6. I'm not sure what to cook for my aunt's birthday part
7. Could you tell me where to put my umbrella?
8. He asked himself what to send her as a present
9. I have no idea when to leave for Japan
