[音频]5. A) Raise postage rates. C) Redesign delivery routes.B) Improve its services. D) Close some of its post offices.6. A) Shortening business hours. C) Stopping mail delivery on Saturdays.B) Closing offices on holidays.D) Computerizing mail sorting processes.7. A) Many post office staff will lose their jobs. C) Taxpayers will be very pleased.B) Many people will begin to complain.D) A lot of controversy will arise.