The focus of this worksheet is "Essential appositives." Essential appositives are set off with commas.
For example: The writer William Shakespeare wrote the play "Romeo and Juliet."
This worksheet includes an answer key (page 2) of the download :-)
A Nonessential appositive that is set off with commas because a phrase renames the subject in the context of the sentence. Nonessential appositives introduce or interrupt a sentence to explain or rename the subject. For example: "William Shakespeare, a famous writer, wrote the play "Romeo and Juliet."