单项选择题

It is strictly______ that access to confidential documents is denied to all but a few.

A．secured
B．forbidden
C．regulated
D．determined
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单项选择题
______ you as soon as I know what______.
A．I'll phone.., does happen
B．I'll phone.., has happened
C．I am phoning...happens
D．I am going to phone...happens
单项选择题
From here, we can see the bridge______ constriction.
A．below
B．by
C．in
D．under
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