Add punctuation: The distinguished audience preferred the chocolate houses where there was a better tone
A: The distinguished audience preferred the chocolate houses where there was a better tone.

Add punctuation: I recommend visiting the Barceloneta area great beaches great food and great atmosphere
A: I recommend visiting the Barceloneta area great beaches, great food and great atmosphere!

Add punctuation: This product was added to our catalog on Sunday 10 June 2007
A:
This product was added to our catalog on Sunday 10 June, 2007.