Dear Adriana,
Thanks for your letter. How are you? I haven't heard from you for ages.
You asked me about how much do I talk to my friends on the phone and about usually talk. Well, i don't always talk with my friends on the phone. I prefer to chating on different topics. Although, i can usually talk on the phone about my homework. My parents often told me that i spend a lot of time on the Internet.
I must go now, because I promised my grandmother to help her. If you want to know anything else, just drop me a line.
Write me soon.
Best wishes,
Alex. (или напишите вместо этого имени своё)
Удачи!