Directions: Identify the term being described in each sentence. Write the letter of your answer before the number. 1. A is a group of related sentences with a main idea, key sentences, and supporting details. 2. The is the central or controlling idea of a piece of writing or paragraph. 3. The or topic sentence expresses the main idea of a paragraph 4. A well-written paragraph contains not only a main idea, but also such as descriptions, explanations, and facts. 5. Main ideas can be in various places in the paragraph: at the beginning, in the middle, or at the A. end B. main idea C. supporting details D. paragraph E. key sentence