The answer is: [D]:
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They are often used to combine choppy sentences.
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Conjunctions are often used to combine choppy sentences.
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Note: The questions asks about CONJUNCTIONS —NOT about "contractions".
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Choice "A" is incorrect. They are not used to combine two or more LONG sentences. If sentences are already long, then do not need to be combined with a conjunction.
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Choice: "B" is incorrect. To the contrary, the use of conjunctions actually makes sentences longer.
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Choice "C" is incorrect. To the contrary, the use of conjunctions should be used (appropriately, of course) in essays. The use of "contractions" should not be used in essays or formal writing.
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Choice "D" is correct. They are often used to combine choppy sentences for better reading and engagement.
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The correct answer is D) There is no single topic sentence. a topic sentence is used to summarize what the writing is about, and there is no sentence that does that in this piece.
Answer:
Exposition explains a subject by illustration
Answer:
Adoption is the legal process by which children enter a family they were not born into.
Explanation:
He spent his time being an adventurer while also being being homeless)