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(   ) 21. Our school is _________ a park and a big library.                       
     A. between     B. next    C. across    D. in
(   ) 22. Tom and Mike enjoy _______ TV.
     A. see       B. watch    C. watching   D. to watch
(   ) 23. --_______ it going?--Pretty good!
     A. What\'s     B. How\'s    C. How    D. Where\'s