по правилам тут должен быть
Thank you for your letter. sorry that i have not written for so long, because i have much homework.
i would like to tell you about what subjects i will take. i want too take biology and chemistry. i coose this because i like this subjects and i know them better than other subjects. i will be had getting ready for exams. i will ride cpecial luterature and learn tickets.
and what about you& tell me about your choose.
sorry, but i must finish now. i have got a lot of homework. hope to meet you soon
как то так)