Body language is a powerful communication system, ______ it can signal verydifferent things.
C
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Previewingisatechniqueofallowingyoureyestotravelrapidly______apage,stoppinghereandtheretoregisterthemainidea.
Thinkinghelpspeoplecontroltheirowndestinies.Thosewhoavoidthinkingruntheriskof______.