单项选择题
We ______ 5 hours writing the plan for our work next month.
A．cost
B．spent
C．took
D．spare
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单项选择题
What the man said at the meeting made us all ______.
A．surprise
B．to surprise
C．surprised
D．surprising
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单项选择题
Hardly ______ when it began to rain.
A．had he arrived
B．arrived he
C．he had arrived
D．did he arrive
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