单项选择题

Mr. White works with a chemicals import export company, but he for the industrial fair, since he is on leave.

A．has worked
B．works
C．has been working
D．is working
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单项选择题
They were pushed into battle ______
A．unprepared
B．unpreparedly
C．not prepared it
D．without preparing it
单项选择题
Brown had the report ______ as soon as he finished ______ it.
A．to be typed, to write
B．typed, to write
C．being typed, writing
D．typed, writing
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