Grammar Bootcamp. Commas. Rule Number 1. Use commas to set off a direct address Soldier, drop and give me 20! No crying for your mama, Marine! Practice #1 Place the comma in the correct place. We love Bootcamp Drill Sergeant Wilder! Recruits no grammar pain, no grammar gain.
Period at the end, after the reference, when what is before is a complete sentence.
“Shouted the major” interrupts the quotation; what is before the reference is a complete thought.
Use a comma on both sides of the reference when it occurs in the middle of the sentence.