单项选择题

Rockets with men in them have reached ______.

A．the sun
B．the moon
C．all the stars
D．some planets
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单项选择题
Before stamps were used, postage ______.
A．was paid by the letter-writers
B．was paid by the letter-receivers
C．was got by postmen
D．both B and C
单项选择题
Rowland Hill ______.
A．invented the first stamp
B．was a postman in England
C．gave the idea to use stamps
D．was the first man to use stamps
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