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The Internet has become part of teenage lifE.A.new report on 3,375 students aged from 10 to 18 in s...

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For about 10 years.  For about 20 years.  For about 40 years.  For about 60 years.  
the; the    /; the    the; a    /; /  
take part in    took part in    taking part in    to be taking part in  
the; the   /; the   the; a   /; /  
the; the   /; the    the; a   /; /  
has become    had become    becomes    will become  
why was it that   why is it that   why is it   why it is that  
such; as    so; that    so; as    such; that  
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