Odpowiedź:
He's studying math. He chose that field because ever since he was young he really enjoyed solving math problems and he always dreamt of becoming a teacher.
My family was skeptical about him going to study in England at first, but they eventually came around. They were mostly worried about how far away London is from Poland, but everything is alright now. He's staying in a dormitory and he said that he really liked it. He mentioned how it was spacious and everything was in great condition. I'd like to visit him soon. Why don't you come with? We can see some lovely tourist attractions in London with him and get some souvenirs. What do you think? I'm waiting for your response.
Love, XYZ