The correct answer is:
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[A]: "a gerund phrase as the object of a preposition" .
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Note: This phrase is: "in serving others" .
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The gerund is: "serving" .
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The preposition is: "in" .
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Answer:
a. That she has the mark of a criminal, the fleur-de-lis.
Holden doesn't feel bad about leaving the school because school wasn't important to him. ... Holden visited Mr. Spencer because he was a teacher that he liked. He regrets visiting Mr. Spencer because he hated being pointed at for example when Mr. Spencer read his paper in front of Holden
“When thinking” is the right answer (the definition of retrospect is “a survey or review of a past course of events or period of time”. So “when thinking “ is most likely the right answer.
Since an argumentative speech is an influential discourse in which the presenter tries to convince his audience to change their standpoints on a provocative subject. So rewriting this will give us this kind of speech: "Do you play sports? Have you ever given soccer, cricket, or field hockey a try? You might be surprised to learn that are the world's popular sports. Statistically speaking, they are more popular than typical American sports such as baseball and basketball.