Answer:
On the condition one,we can kown Bradley and Church not the owner of silver car.
On the condition tow,we can kown Dawson not the owner of the red car and gray car.
On the condition three,we can kown the yellow car not belongs to Arnett and Dawson.
So far，we can konw Dawson is owner of silver car.
In the condition four,we can kown gray car is belongs to Bradley.
According to the exclusion method,the red car belongs to Arnett,the yellow car belongs to Church.