1. I don't know who to talk to about improving the facilities in our neighborhood.

• We need to know the person, so we use "who."

2. I have no idea where to find the local craft village.

• We need to know the place, so we use "where."

3. Can you tell me what to do in unexpected fire situations?

• We need to know the actions or steps, so we use "what."

4. Could you tell me when to prepare specialty dishes for the community event?

• We need to know the time, so we use "when."

5. Could you tell me where to buy that handicraft? - At the local market.

• We need to know the place, so we use "where."

6. She wonders who to ask for help, her parents or her friends.

• We need to know the person, so we use "who."

7. She hasn't decided why to move to the new neighborhood, because she's very busy with her project at the moment.

• We need to know the reason, so we use "why."

8. Could you tell me how to cut down on eating too much fast food?

• We need to know the method or way, so we use "how."

9. I wonder when to receive the package, today or tomorrow.

• We need to know the time, so we use "when."

10. He has no idea how to create a handicraft from wool.

• We need to know the method or way, so we use "how."