Answer:
Def 1: A person who goes ahead and discovers or shows others a path or way
Def 2: An aircraft or its pilot sent ahead to locate and mark the target area for bombing
Def 3: an experimental plan or forecast
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Explanation:
-She leads the discussion
-She states facts based on the book
-She gives her viewpoint, including an opinion
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The schoolhouse reveals that the story takes place in the distant past because it is the only one for all the island's students
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