选出不同类的一项。
( )A. often B. usually C. noon
( )A. spring B. fall C. skate
( )A . dog B. elephant C. play
( )A . swim B. people C. write
( )A . third B. fourth C. eight
( )A. winter B. cool C. spring
( )A. cold B. warm C. walk
( )A. skate B. swim C. season
( )A. first B. two C. second
( )A. May B. July C. Sunday