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world.
1 A boot .....
is a place where people
can go to get fit.
2 Some psychologists believe that video games
have a negative ...
.... on children.
3 A lot of teenagers have created their own
characters in a virtual
Internet.
The mobile phone is a fantastic communication
.. on the
A recent
.. showed that teenagers
spend too much time texting.
He spends his evenings
online.