Dear David,
Thank you for your letter. It was great to hear from you!
You asked me about my free time. I usually read books or watch movies. Sometimes I go for a walk in the park with my friends. It's fun!
To answer your questions, I spend my free time playing football or riding my bike. I like sports. On holiday, I usually travel with my family to the seaside or visit my grandparents in the countryside. It is always a good time!
What about you? What are your plans for the summer holiday?
Write back soon!
Best wishes, [Your Name]