This document contains examples and exercises on the passive voice and causative constructions in English grammar. It includes over 20 examples of sentences rewritten in the passive voice, as well as exercises asking students to rewrite sentences in the passive and answer questions about sentences written in the passive. There are also examples and exercises on the causative, including rewriting active sentences as passive causatives and vice versa. The document appears to be from an English grammar lesson for non-native speakers.