39f Use commas to set off contrasting elements, interjections, direct address, and tag questions.
CONTRASTING ELEMENTS
On official business it was she, not my father, one would usually hear on the phone or in stores.
– Richard Rodriguez, “Aria: A Memoir of a Bilingual Childhood”
INTERJECTIONS
My God, who wouldn’t want a wife?
– Judy Brady, “I Want a Wife”
DIRECT ADDRESS
Remember, sir, that you are under oath.
TAG QUESTIONS
The governor did not veto the unemployment bill, did she?