Sure, let's write a letter based on the task provided.
Hi Tom,
Thank you for your email. I usually celebrate my birthday with my family and a few friends. We have a little party at home with cake, games, and sometimes we go out to the park.
I don’t invite many guests, just close friends and family. It makes the party more fun and personal.
Looking forward to hearing from you!
Best wishes,
Mike
This is a simple and suitable response for a 5th-grade student.