Here are the completed sentences with suitable question words:

1. He doesn’t know **who** to ask for advice about this situation.
2. Be sure **what** to eat when you arrive in Vietnam.
3. They are going to tell me **what** to do to survive in a storm.
4. I asked Jane to show me **how** to get on well with my new neighbours.
5. He wondered **when** to visit Phu Quoc to avoid stormy weather.
6. The rules didn’t specify **who** to speak to in case of an emergency.
7. The tourists are looking at the artisan to find out **how** to make pottery.
8. I don’t know **who** to turn for help if I get lost in the forest.
9. I had no idea **what** to buy as souvenirs when travelling abroad.
10. Could you please tell me **when** to take out the rubbish, 6 or 7 p.m.?