听力原文：From an early date bankers have made a charge for the services which they provide for their customers.(9)A.From an early date the banker have charged a commission for their services.B.From an early date the banker has an obligation to serve the customers.C.From an early date the customers have charged a commission.D.From an early date the customer has an obligation to serve the banker.
A.(9)
A.From
B.
B.From
C.
C.From
D.
D.From
E.