Use double quotation marks (" ") to enclose phrases or entire sentences that were taken word for word from someone else. Quotation marks are not needed for paraphrasing. Example: The dog he brings on ...
This is the Grammar Guy column, a weekly feature written by Curtis Honeycutt. I can think of a few things off the top of my head that I hope never to use: math, a fire extinguisher, Pepto Bismol and ...