选出不同类的单词。
( ) (1)A.pants B.shoes C.socks D.map
( ) (2)A.east B.west C.suitcase D.south
( ) (3)father B.teacher C.mother D.sister
( ) (4)A.ticket B.know C.live D.come
( ) (5)A.red B.blue C.white D.flag