The second is correct. Recorded delivery is a service which (in UK) would require the addressee to sign to show that it had been received.

I really don't think that there is any significant difference between the sentences. I would use both but mostly the second would be a bit more casual and implies that the action is in the future.

I have always assumed that 'leading with your chin' was a reference to boxing; i.e. an approach that was going to get you knocked out.

If you mean music written by Beethoven, Bach, Brahms etc., the correct phrase would be classical music. The word 'classic' could be applied to any sort of music e.g. classic tracks from The Beatles.

OK, I have made some changes to your original text that I think make it read better in fairly formal English. I hope I have understood what you wanted to say. Some general points: - it is best to spell out numbers ten and below - be careful not to leave our definite articles (the) I would like to tell you about my summer trip to the sea. The first time I visited Marmaris was four years ago. Marmaris is located in a harbour surrounded by mountains and is bounded by two seas: the Mediterranean sea and the Aegean sea. When I emerged from the airport I smelt warm, pine scented air. Then we travelled to the hotel for two hours on a winding road. The hotel was built in the shape of a turkish village with upper stories. The hotel is very cosy and comfortable. The countryside is amazingly beautiful, the weather is cool and the water refreshing . The Aegean sea is a bright blue colour and very clear. Marmaris is famous for its nightlife. Bar street is the street where many clubs and bars are located which were open until morning. I love Marmaris!