Answer:
In a rough draft, all sentences in each body paragraph should support the main idea or topic sentence of that paragraph. The purpose of a body paragraph is to develop and expand upon a specific point or argument, and each sentence should contribute to that overall focus. This can be achieved through providing evidence, examples, analysis, or explanations that help to strengthen and clarify the main idea. It is important to ensure that the sentences within a paragraph are coherent and logically connected, creating a smooth flow of ideas for the reader.