找出不同类的单词。
(    )

A．morning

B．evening

C．dinner

D．afternoon

(    )

A．usually

B．best

C．often

D．sometimes

(    )

A．drink

B．trunk

C．swing

D．fight

(    )

A．December

B．February

C．Sunday

D．May

(    )

A．second

B．eighth

C．fifth

D．which

(    )

A．swim

B．play

C．noon

D．skate