单项选择题

All ________knowledge originates in direct experience.

A．generous
B．genuine
C．genius
D．gentle
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单项选择题
He________ at his watch and then looked at the sky.
A．scanned
B．skimmed
C．glanced
D．glimpsed
单项选择题
I am really________ your reasons for leaving home and wandering about in the street.
A．ambitious to
B．in charge of
C．ignorant of
D．fortunate in
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