找出每组中不属于同一类的单词，将其序号填在题前的括号内。
( )（1）A. black B. ball C. blue
( )（2）A. cap B. CD C. jacket
( )（3）A. egg B. brown C. hot dog
( )（4）A. this B. that C. look
( )（5）A. nice B. great C. yellow