找出与下列音节发音不同的单词,将题号填入括号内
1,（ ) A,cold B,no C,open D,hot
2,( )A,dry B,dirty C,thirty D ,twenty
3,( )A,is B,this C these D.those
4,( )A table B make C lamp D cake
5,( )A,go B,stop C,home D hello