--- Where is your dad ?
---      is in the study .
A.She        B.They       C.He
( )Some boys enjoy music.
  A .listen to B. listens to C. listening to
( ) We have four classes  8:00 11:30 in the morning
  A. from…to B. at…to C. from…and
( ) Different people have different .
  A. hobby B. hobbies C. a hobby
( ) The White House is in .
  A. France B. China C. Washington D.C.
( )Our teacher always tells us waste water.
  A. to not B. not to C. not