因为Mr & Mrs Jone do not like beer,所以beer是给Mr or Mrs Zhang的.
因为One of the Zhangs says " I want lemondade",所以Mr Zhang 和Mrs Zhang 喝的是beer和lemondade.
One woman want a cup of coffee,所以coffee是给Mrs Jone的.
Tea是给Mr Jone的
因为one man says I only drink lemonade,而Mr Jone喝的是tea,所以lemonade是给Mr Zhang的.
最后beer是给Mrs Zhang的.
Totoally 5 person：Mr & Mrs Zhang,Mr & Mrs Jone,Waite