选出每组单词中不同类的词,把字母编号写在括号里.（ ）1、A:fever B：toothache C:ill D：headache
( )2、A:pale B:pain C:cold D：hot
( ）3、A:wake B:feel C:worry D:tired
( )4、A:should B:seldom C:sometimes D:never
( )5、A:your B:mine C:her D:their
( )6、A:them B:she C:it D:we
( )7、A:second B:thirty C:first D:fifth
( )8、A:beef B:porridge C:carrot D:tea