This document discusses the differences between active and passive voice in writing. It defines active voice as when the subject performs the action of the sentence, while passive voice is used when the subject receives the action. The document provides examples of sentences in both voices and emphasizes that strong writing generally uses active voice as it is more direct and concise. It outlines some limited cases when passive voice may be preferable, such as to hide responsibility or emphasize the recipient of the action. The document also reviews the grammatical components of passive voice and provides exercises for students to practice identifying and transforming sentences between the two voices.