У меня осталось 10 минуут

Noyabrsk,
Russia
3 April 2016
Dear Kate,
I was glad to get your letter. It feels good to hear from you after such a long time. Sorry, I didn't reply sooner but I've been busy with school.I have my finals in a couple of months, so I study a lot these days.
I will take social studies and history exams because I`m going to enter a law school next year. I hope I will pass them.
What about you? What do you want to become in the future? And when are you going to take your final exams? What university have you chosen for yourself? 
I'm sorry, but I must finish my letter here because I have to study a bit for my tomorrow test.  Hope to hear from you soon! 
Take care.
Love, Alina.

Ошибок вроде немного, просто постаралась сделать менее формальным

1. March 8 women are given gifts. 2. Russia exports oil, natural gas, coal, iron, gold and other mineral resources. 3. Russian forests are concentrated in the north and east of the country. 4. People paint and give eggs for Easter as a symbol of eternal life. 5. Russian athletes have won a large number of medals at the Olympic Games. 6. The two-headed eagle and the tricolor flag are the symbols of Russia. 7. Estonia, Poland and Latvia are the former republics of the USSR. 8. For the New Year, the people of Russia buy a Christmas tree. 9. The people of our country are proud of Russia. 10. The Duma is the legislative branch of Russia, headed by the president.