The correct answer should be
<span>to lend credibility and additional support to their conclusion
Quoting famous books is usually done to support what you're saying, it's not about proving things or demonstrating it, it's rather to help make your hypothesis seem more legitimate. Highlighting your knowledge is not necessary and sounds a bit arrogant. </span>
No because of HAVE it should be has
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http://www.essaytyper.com/ go to this page and put in expository writing, then click random keys.
Explanation:
Hope this helps :), it works ive used it many times
