CHAPTER 4 Punctuation: End Marks and Commas^101
violence reckless driving depression and suicide. SADD’s unique approach involves
young people delivering education and prevention programming to their peers
through school- and community-wide activities and campaigns responsive to the
needs of their particular locations. Since its formation SADD has spread to all fi fty
states Canada New Zealand and many other international locations.*
Paragraph 2
Are you ready for a substitute for the mind-bending compelling puzzle Sudoku?
Psychologists now assure us that ten minutes of talking visiting and establishing
social contacts boost intellectual performance as much as doing crossword puz-
zles. A team of researchers asked more than 3,500 people between 24 and 96 years
old about their social interactions and tested their memories. One researcher
offered “We found the more the social contacts the higher the level of mental
functioning.”
Paragraph 3
You’ve heard the 30-minutes-of-exercise-per-day recommendation for some time
but you can’t seem to fi t that into your schedule. Is all hope lost? No say the experts.
Will short, spurts of moderate exercise help your fi tness level? If you’re doing noth-
ing and you decide to walk briskly fi ve days a week or even three days a week for
30 minutes, you will experience positive results. In addition you can do the 30 min-
utes all at once or in shorter segments of at least 10 minutes each. After three
months you’ll probably experience lower blood pressure and a smaller waistline.
Written Practice 4-10
In each of the following sentences, insert or delete commas where necessary.
- Jim Hanfry a weekly player fi nally won the offi ce lottery.
- My summer garden always includes squash tomatoes and cucumbers.
- Can we therefore consider the matter closed?
- The oldest theater in town was torn down and a parking lot was built in its
place. - Before the cold weather arrives I turn off the outdoor water spout.
- You will have driven 1,500 miles by the time you reach Detroit Michigan.
*Adapted from healthfi nder.gov/orgs/HR2094.htm.