The main idea is most important part of your book. It tells the reader what the text is about, what is happening at that moment.
The heart beat on how he's super nervous, I remember reading this story and he begans to become frantic and have second thoughts.
Fool, idiot, unintelligent ..
The answer is C assiduous.
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i hope this helps
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Zane
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Whats cooler than being cool ?