The document contains a quiz on prepositions with 20 multiple choice questions testing the correct use of common prepositions like "at", "in", "on", "until", "after", "for", "of", "from", "since", and "by" in different contexts such as locations, times, and descriptions. The questions cover a range of scenarios involving places people live, times, ongoing situations, responses to things, activities, waits, locations of things/people, injuries, interests, ingredients, names, durations, means of travel, media formats, estimated times, locations, origins, and durations.