Commas
Use commas to separate items in a list of three or more. "She bought apples, oranges, and bananas." The comma before "and" at the end of a list is called the Oxford (or serial) comma. In British English it is often omitted; in American English it is usually kept. When the last two items could be confused without it, the Oxford comma is essential: "I'd like to thank my parents, Einstein, and Newton" vs. "my parents, Einstein and Newton" (which implies your parents are Einstein and Newton).
Use commas to separate items in a list of three or more. "She bought apples, oranges, and bananas." The comma before "and" at the end of a list is called the Oxford (or serial) comma. In British English it is often omitted; in American English it is usually kept. When the last two items could be confused without it, the Oxford comma is essential: "I'd like to thank my parents, Einstein, and Newton" vs. "my parents, Einstein and Newton" (which implies your parents are Einstein and Newton).
Practice
Which sentence is correctly punctuated?
The report covered marketingsales, and customer service.
Put the words in the correct order with correct punctuation: