We ate , slept , and danced during Fall Break. Mary enjoys both the competitive nature of rugby and the sheer athleticism of Ultimate. Allows the writer to emphasize the more important aspects of a sentence while still including relevant, if less important, information. The rise has been dramatic. Many students purchase used books from the bookstore.
Used books are cheap.
My parents didn t want me to buy a new car. I bought a new car in 1997. The second sentences are less important to the reader s understanding than the first in these cases. Many students purchase used books from the bookstore because used books are cheap . My parents opposed my purchase of a new car in 1997 .