The concluding sentence of a narrative paragraph should emphasize the moral lesson to the audience. With descriptive paragraphs, the concluding sentence helps to tie everything together by emphasizing details from the topic sentence, using different wording and summing up supporting facts. When writing a concluding sentence for the compare and contrast paragraph, you will want to restate both topics by pointing out the various similarities and differences that were discussed. The concluding sentence in an argument paragraph will summarize the argument being made. It may reaffirm why the argument is correct and the consequences that may occur if the argument is not heeded.