Punctuation Marks

Punctuation marks make words and sentences easier to understand.

PERIODEXAMPLES
Use a period:
• at the end of a statement or a polite commandGeorgia read the paper to her mom.
Tell me if there are any interesting articles.
• after an abbreviationThere’s a new restaurant on Stone St. near our house.
It opens at 10 a. m. today.
But: Do not use a period in an acronym:
National Aeronautics and Space Administration NASA
Do not use a period in the abbreviation of a state name written in a mailing address:
Massachusetts MAIllinois ILTexas TX
California CAFlorida FLVirginia VA
• after an initialThe owner of J. J. Malone.
• to separate dollars and cents. The period is the decimal point.The article says lunch today costs only $1. 50.
• in an Internet address. The period is called a dot.The restaurant has a Web site at www.jjmalone.org.
QUESTION MARKEXAMPLES
Use a question mark:
• at the end of a questionWhat kind of food do they serve?
• after a question that comes at the end of a statementThe food is good, isn’t it?
But: Use a period after an indirect question. In an indirect question, you tell about a question you asked.
I asked how good the food could be for only $1.50.