Assignment Guidelines: You must have an effective introduction that gains the readers' interest You must use topic sentences and your paragraphs must be well organized Transitions between ideas to show similarities and differences must be used regularly You must have both simple and compound sentences in your essay You must use verbs that show cause and effect You must use the grammatical structures and vocabulary we have discussed for expressing cause and effect relationships (pp. 20-21, 23-24, and 26). .