| Rule #3 Commas and Interjections  | 
    
Rule: Use a comma after an interjection to separate it from the rest of the sentence.
An interjection is a word or words that expresses emotion. The interjection usually comes at the beginning of the sentence.
Examples:
Well, I never knew that comma rule.
Oh, we went the wrong way.
Heck, it was a great essay
  
 
        
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