Hello Jenny,
I'm happy to receive a letter from you. You've asked me a few questions, so I'm going to answer them.
I'm spending my holidays in London, and it's amazing! I've already visited Big Ban, Buckinham Palace and Trafalgar Square, but there are lots of places, that I'm just going to visit! I'm afraid, that I'll have no time to see everything, so I hope, I'll come back to London someday. I've bought a lot of souvenirs: magnets, small red buses, small Big Ban and of course a cup with "The Beatles" picture on it!
Sorry, I have to go now. Waiting for your letter, miss you, *your name*