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let us not wallow in the valley of despair.
Answer:
<em>Well, Most wizards are unfamiliar with this piece of technology, with Ron Weasley calling it a "fellytone," and believing he had to shout into the receiver to be heard. Consequently, the wizarding world prefers to use owls and the Floo Network for communication. </em><em>Good Luck!</em>
This is a run on sentence because it’s combing two sentences without a .