請問一下點樣答才會中point,點樣先可以以essay回答?
Sam offered his car for sale to Peter for $50000 giving him seven days to made up his mind. On the sevrnth day, Peter wrote to Sam saying that he would giving $40000 for the car and if Sam were agreeable he was to drive the car to John's Garage. Peter added: If I don't hear to the contrary, I will consider the car mine'. Sam arranged for the car to be driven to John's Garage, but Peter has not paid for or taken delivery of the car and now seeks to escape liability. Advise Sam.