This document discusses the use of prepositions of time and place in English. It provides examples of common prepositions used to indicate time, such as "at", "on", and "in" when referring to specific times, dates, days, months, or periods of the day. It also discusses prepositions used to indicate location, such as "in", "on", "under", "next to", "between", and "behind". Several exercises are included for the reader to practice identifying the correct prepositions of time and place in different contexts. Pictures are also used to demonstrate the meaning and usage of various prepositions of location.