A comma is added to a sentence when there is:
- A pause
- A list
- A separation of clauses or phrases.
Therefore, the documents below have been properly punctuated with commas.
a. The Preamble to the Constitution secures "the blessings of liberty" to
the American people, to their descendants, and to every generation.
b. These brief, historic, and comprehensive amendments shape many
aspects of American life.
C. Today, Americans can read the text of the Bill of Rights online; they can
purchase printed copies, or they can see one of the original documents
on display.
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