单项选择题

You'd better put these documents in a safe place

A．dark
B．secure
C．guarded
D．banned
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单项选择题
I'm working with a guy from London.
A．teacher
B．student
C．friend
D．man
单项选择题
Mary rarely speaks to Susan.
A．slowly
B．seldom
C．weakly
D．constantly
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