找出一个与其他三个不同类的单词,并把其字母编号写在括号里。(每小题1分,共10分)
( )A.USA B.China C.black
( )A.small B.head C.long
( )A.two B.twelve C.Sarah
( )A.chair B.pen C.desk
( )A.hello B.boy C.girl
( )A.spring B.summer C.season
( )A.monkey B.tree C.panda
( )A.car B.bus C.hat
( )A.colour B.red C.black
( )A.dad B.your C.mum