I need to know how to ask basic questions, if you can, please also include an audio file with your response.

answer:

These are the examples that I would say as usual. 
Sorry I didn’t attach the audio file.

- お腹減ってる？ (casual)
Onaka hetteru?

- お腹は減ってますか？(slightly polite)
Onaka wa hettemasuka?