单项选择题

The policeman saw the thief ______he appeared on the street corner.

A．not until
B．the moment
C．as long as
D．only if
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There is no evidence______ oil price will come down in the near future.
A．which
B．where
C．that
D．as
单项选择题
It is required that anyone applying for a driver's license______ a set of tests.
A．take
B．took
C．takes
D．will take
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