找出每组单词中不同类的选项。(5分)
( )(l)A. pencil B. pear C.ruler D.pen
( )(2)A. sad B. present C.excited D.happy
( )(3)A. shoe B. head C.hand D.arm
( )(4)A. ate B. went C.flew D.swim
( )(5)A. monkey B.tiger C.kitchen D.giraffe