The document provides examples of prepositions to demonstrate their usage. It gives sentences describing the location of various objects using prepositions like "around", "across", "among", "at", "back", "behind", "between", "in front of", "into", "on", "next to", "on top of", "opposite", "through", "under", and "upside down". It then repeats the sentences leaving blanks for the reader to fill in the missing prepositions.