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1. They don't know where to put the sofa.
2. The rules didn't specify who to speak to in case of an emergency.
3. Huyen My wondered how to ride the scooter.
4. Let us decide when to start the project.
5. Could you tell me where to find a good hotel?
6. We must find out what to do next.
7. A good dictionary tells you how to pronounce the words.
8. They are not sure who to meet at the entrance.
9. She can’t remember when to turn off the oven.
10. Does he know what to look for?
