Previewing is a technique of allowing your eyes to travel rapidly ______ a page,stopping here and there to register the main idea.
C
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Oneofthemainreasonsisthatmakingfurniture______vastquantitiesoftrees.
I'melevenyearsold.Mylittlesisterisnine.So__?
Keepyourlife______sothatthingsdon"tgetyoudown.