Correct the letter.

Dear Mike,
I was very happy to get your letter. Sorry, I have not written for so long because I have been busy at school studying for my exams.
In Russia, many children taught in English. In Russian schools teach a large number of other languages. For example: French, German, Arabic, Spanish and Italian languages. I chose English because it is the language of international communication. In order to improve the Engilsh language I read books, listen to the radio and watch television in English. I enjoy.
How old is your your younger brother? Does he like to go to school? How did he learn?
I am looking forward to your answer. Keep in touch.
Best wishes,
Ilya. 100-140 words limit.