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Just thought I will create a new topic for this When to use [#permalink]
10 Mar 2009, 15:59
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Just thought I will create a new topic for this
When to use COMMA before AND,
Place a comma before and or but introducing an independent clause. Used between independent clauses, it indicates only that a relation exists between them without defining that relation.
"he early records of the city have disappeared, and the story of its first years can no longer be reconstructed."
The second use of comma is straight forward as follows.
In a series of three or more terms with a single conjunction, use a comma after each term except the last.... "red, white, and blue "
So always keep looking for the right use of comma.
I know GMAT says it does not test your punctuation skills.... but knowing basic punctuation skills has helped me quite a bit. Can you believe, you can actually eliminate some of the answer choices based on the use of punctuation marks.