单项选择题

The magician picked several persons ______ from the audience and asked them to help him with the performance.

A．by accident
B．on occasion
C．at random
D．on average
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单项选择题
The final document was of course, supposed to mend the damage ______ upon the world by the war.
A．imposed
B．impressed
C．compelled
D．compressed
单项选择题
A．resignedB．assignedC．awardedD．distributed
A．resigned
B．assigned
C．awarded
D．distributed
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