Написать письмо родителям из Англии

Dear Mum and Dad,
Thanks for your letter. Sorry for not answering earlier. Ive been in Great Britain for some days and I really like it. Yesterday my mates/friends and I went sightseeing in London. We saw lots of antic architecture which is famous all over the world. For example we saw Big Ben and Tower of London. It was really amazing! Ive already been in London Eye and have seen breathtaking views. And guess what - Ive even meet new friends there! Sorry, I must go now. Its too late here. Drop me a line!With love,
/your name/