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дата написания письма (9.4.17)
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Dear Tom,
Thanks for your letter. Sorry I haven't written for so long because i've been busy with my study.
In your letter you asked me about books. Well, I really like books about history, because it helps me to learn about events of the past centuries. I prefer e-books. As for me it's very comfortable to use them because they are compact and you can carry them with you. In my free time I like to read science-fiction and detectives.
Sorry, I have to go now because my mom asked me to help her.
Best wishes,
Ваше имя.