单项选择题

Not until I began to work ______ how much time I had wasted.

A．have I realized
B．I have realized
C．did I realize
D．I realized
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The policeman asked him ______ detail of the accident.
A．in
B．for
C．by
D．with
单项选择题
Tony is very disappointed ______ the results of the exam.
A．toward
B．with
C．on
D．for
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