It's twelve ________．
A．oclockB．a clock C．o'clock
It's time ________ get up.
A．to B．for C．four
There ________ some hamburgers and a cake.
A．be B．is C．are
Look ________ my kitchen.
A．atB．inC．on
选出不属于同一类的单词。(10分)
（1）A.playB．subjectC．sing
（2）A.boyB．teacherC．toy
（3）A.breakfastB．breadC．lunch
（4）A.EnglishB．balloonC．PE
（5）A.twelveB．fruit C．fifty