Dear Sam,
Thanks for your letter. It was great to hear from you again. Sorry, I haven’t been in touch so long.
You asked me about my favorite subject. It’s English. I like it because I want to be a translator. Sometimes I do my homework fast but sometimes it takes about 1 or 2 hours. In my free time I like to listen music or watch TV. Sometimes I go for a walk with my friend.
Sorry, I have to finish my letter. My mom wants me to look after my little sister.
Take care and keep in touch.
All the best,
*your name*