Put the paragraphs in the right order.

The correct order of the paragraphs is: 1. D (Greetings from Moscow!...) 2. A (First of all, we are going to do a lot of sightseeing...) 3. C (Mum can't wait to go shopping...) 4. B (I'm going to take lots of interesting pictures...) Explanation: * Paragraph D is the most logical opening as it introduces the fact that Lucy has just arrived in Moscow. * Paragraph A follows naturally as it describes the planned sightseeing activities. * Paragraph C then introduces the mother's desire to go shopping. * Paragraph B concludes the letter with a mention of bringing back a Matryoshka.