... in class today: he had to fly to Houston to present a paper.My teacher wasn’t in class today. He had to fly to Houston to present a paper.The first example, with the colon, has the tone that ... HOW TO WRITE GREAT ESSAYSCHAPTER 5 Revising, Editing, and Proofreading56Also included in this chapter are professional writers’ and editors’ tricks to help you withrevising, editing, and ... after the word and. For instance, in thefollowing example, the comma after apples is the serial comma:At the store, I bought bananas, apples, and oranges.The lack of a serial comma can cause confusion....