Base your examples on works studied this term. Remember that you may quote words from Temple Grandin's speech at Ted.com, for example. Try using the interactive transcript at the right of the video window. I will post samples this weekend. In the meantime, try writing a few examples of your own for practice.
One sentence that introduces a quote, uses a comma to separate the quote and has the quote end the sentence.
One sentence that introduces a quote with a colon.
One sentence with the quoted words in the middle of a sentence.
