Ответ:
Dear friend,
Thanks a lot for your letter - I was really glad to hear from you. Sorry, I couldn't anwser earlier - I had too much homework to do.
That's cool that you've been on a rock-n-roll concert - I remember how much you wanted to get there! Anyway, I'm not a fan of rock-music, it's to rude for me. I prefer pop music which you can usually hear from every radio. I don't really like going on concerts. I would rather walk with my friends. I've been on 2 concerts, but I didn't like them - so I don't go there anymore.
I need to help my mom, so that's why I must finish my letter.
I'm looking forward to hear from you soon.
Best wishes,
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