根据下列单词中画线部分字母的读音将其分类：read,free,grade,dream,weekend,age,master,team,slim
,tennis,member,swimming,meeting,classmate,player,best,letter,date,dancing,gate,really,best,seldom,enjoy,take,glasses,need,which,history,each,pardon,building,hill,start,wake,radio,past,rest,never,after /a:/( )( )( )( )( )( )( )( )/ei/( )( )( )( )( )( )( )( )/i:/( )( )( )( )( )( )( )( )/i/( )( )( )( )( )( )( )( )/e/( )( )( )( )( )( )( )( )/