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• A、The end of riders' business

• B、The fastest message service

• C、The comfortable home station

• D、The effective system to send mail

• E、Safe delivery despite the tough ride

• F、Need of message exchange in the gold rush

To ride 2,000 miles took the Pony Express ( )

• A、only ten days

• B、for a better life

• C、a couple of months

• D、be young and brave

• E、switch horses and riders

• F、after the outbreak of the Civil War

A.get	E. medicine	I. only
B. called	F. over	J. use
C. similar	G. average	K. usually
D.think	H. valuable	L. development