This document provides examples of using the prepositions "at", "on", and "in" to indicate place and time. It explains that "at" is used to indicate very specific places and times, such as "at 4545 Talkntext Street" and "at 6 o'clock". It notes that "on" is used to indicate nearby or general places and times, like "on Talkntext Street" and "on Wednesday". Finally, it states that "in" is used for general places and larger spans of time, for examples "in Tarlac" and "in the morning". The document provides multiple examples for each preposition to illustrate their uses for indicating place and time.