单项选择题

Yesterday we ______to climb mountains.

A．go
B．have gone
C．went
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单项选择题
Nowadays ______people are out of work.
A．million of
B．millions of
C．million
单项选择题
—Would you like another cup of coffee— ______.
A．Never mind.
B．No, thanks.
C．You're welcome.
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