“Hello,Operator.You gave me the wrong number.”Theyoung man was quite angry about it.“I’m calling HOPE5567.”“There is no such exchange(交换机)as Rope,”said theoperator.“Hope,”replied the man angrily.“H like in Harry,Ofor Otto,P for Peter and E for Edward.’”Gee,“said the operator,”that phone booth must be awfully crowded.But what number do “Hello, Operator.You gave me the wrong number. ” Theyoung man was quite angry about it. “I’m calling HOPE5567. ” “There is no such exchange (switch) as Rope,” said theoperator “H like in Harry, Ofor Otto, P for Peter and E for Edward. ’” Gee, “said the operator, ” that phone booth must be awfully crowded .But what number do