单项选择题

The ______ of the world is unknown, but it is certainly not from Greek.

A．origin
B．generation
C．descent
D．cause
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单项选择题
During the famine, many people were ______ to going without food for days.
A．suck
B．reduced
C．forced
D．declined
单项选择题
I can't go—for one thing, I have no money, and ______ I have too much work.
A．what's more
B．as well
C．for another
D．in addition
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