【which的连接用法是怎样?Idontwanttohelpapersonwhowillneverhelpme还是idontwanttohelpapersonwhichwillneverhelpme.还有which后面的动词,用加s?whichmakespeopleintoidiots还是whichmadepeopleintoidiots?orwhi】

　　which的连接用法是怎样?

　　Idontwanttohelpapersonwhowillneverhelpme

　　还是

　　idontwanttohelpapersonwhichwillneverhelpme.

　　还有which后面的动词,用加s?

　　whichmakespeopleintoidiots

　　还是whichmadepeopleintoidiots?

　　or

　　whichmakepeopleintoidiotes?

　　为什么?