单项选择题

A．Overland transportation in the nineteenth century
B．Historical aspects of mail delivery
C．Vehicles currently in use by the postal service
D．The invention of the railroad
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单项选择题
A．To inform visitors of the park’s history.B．To provide an overview of the park’s main attractions.C．To show visitors remote places in the park.D．To teach visitors how to photograph wildlife best.
A．To inform visitors of the park’s history.
B．To provide an overview of the park’s main attractions.
C．To show visitors remote places in the park.
D．To teach visitors how to photograph wildlife best.
单项选择题
A．He didn’t know what hospital Bill was in.B．He took Bill to the hospital.C．He’s sorry file woman hurt herself.D．He forgot to call the woman.
A．He didn’t know what hospital Bill was in.
B．He took Bill to the hospital.
C．He’s sorry file woman hurt herself.
D．He forgot to call the woman.
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