1. C’mon, you know you want to know how to use them properly…

2.  I practice tennis in the summer but I’m still not very good at it.

3.  Use a comma before a coordinating conjunction when it joins independent clauses.  I practice tennis in the summer, but I’m still not very good at it.

4.  We’ll change seats talk about the week and begin our work.

5.  Use commas to separate items in a series.  Remember to include the comma before the final conjunction for clarity’s sake.  We’ll change seats, talk about the week, and begin our work.

6.  The sunset is still a vivid beautiful scene in my mind.

7.  Use commas to separate two or more adjectives before a noun.  Remember to try the “and” test.  The sunset is till a vivid, beautiful scene in my mind.

8.  Monica carrying the heaviest load lagged far behind the others.

9.  Use commas to set of nonessential elements (phrases and clauses).  Monica, carrying the heaviest load, lagged far behind the others.  Marcie Smith, who lives across the street, went on vacation last week.  My job, teaching sophomore English, is rewarding.

10.  Yes I heard your question.

11.  Use a comma to set off a mild introductory interjection.  Yes, I heard your question.

12.  At the end of the period you may turn in your essays.

13.  Use a comma after TWO OR MORE introductory prepositional phrases.  At the end of the period, you may turn in your essays.  You may need to use a comma after only one prep phrase if clarity is an issue.  At the track, meet me at the front gate.

14.  When we get to the pool you can go swimming with Meg.

15.  Use a comma after an introductory adverb clause.  When we get to the pool, you can go swimming with Meg.

16.  John Steinbeck a famous modern author wrote Of Mice and Men.

17.  The band in my opinion is worth booking for the party.

18.  Stan would you please sit in the front desk?

19.  Use commas to set off interrupters such as appositives, direct address, or parenthetical expressions.  John Steinbeck, a famous modern author, wrote Of Mice and Men.  The band, in my opinion, is worth booking for the party.  Stan, would you please sit in the front desk?

20.  The teacher in the room across the hall is Catherine’s neighbor.

21.  DO NOT USE UNNECESSARY COMMAS!  There are other ways to “create drama” in your writing.