单项选择题

Did people have to pay postage when they received letters in the early 19th century

A．In the early 19th century.
B．On May 6,1840.
C．On May 6,1814.
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单项选择题
A．On a ship.B．On a car.C．On a bus.
A．On a ship.
B．On a car.
C．On a bus.
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