0008 Understand and Apply Knowledge of Mechanical Conventions in Edited English in the United States
Recognize Instances in which Incorrect or Extraneous Punctuation Has Been Used or Necessary Punctuation Has Been Omitted
Use a comma in the following situations:
- Between independent clauses joined by coordinating conjunctions (and, but, or, nor, for, so)
Example: We wanted to see the show, but we didn’t get there on time.
- Between introductory elements and the rest of the sentence
Example: After I graduate from college, I plan to go to graduate school.
- Between items in a series
Example: A good teacher is well organized, knowledgeable, and interested in students.
- To set off explanatory or parenthetical parts of a sentence
Example: The meeting, for your information, will begin at 9:00 a.m.
- Between addresses and dates and the rest of the sentence
Example: He vacationed at the White Pine Hotel, 98 Ashland Street, Radford, Virginia, in May, 1987.
- To separate a direct quotation from the rest of the sentence
Example: “Call the police,” she screamed, “and tell them to come quickly!”
- Between contrasting parts of a sentence
Example: It was John, not Harry, who paid for our dinner.
- Between nonrestrictive words, phrases, and clauses and the rest of the sentence.
Example: She is as tall as, though two years younger than, her brother.