找出不同类的单词。
(    )（1）A.tennis      B. basketball      C. run
(   )（2）A.ice-skate    B. ski           C. lunch
(   )（3）A.feed       B. sometimes      C. always
(   )（4）A .cool      B. great          C. cry
(   )（5）A.gym       B. classroom      C. bowling