单项选择题

They are trying to work out a ______ to the problem.

A．satisfaction
B．solution
C．concentration
D．attention
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单项选择题
During the examination you are supposed to stay in your seats, to keep your eyes on your papers, ______ to anyone.
A．but could not talk
B．not talk
C．and not to speak
D．rather than
单项选择题
______ in my present work, I would be quite willing to do what you ask me to.
A．Were I not engaged
B．Engaged I were not
C．I were not engaged
D．Were not I engaged
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