单项选择题

Because of the complexity of the modern machine, most offices require secretaries ______.

A．to have specified training
B．specified in traing
C．to train secifiedly
D．training specified
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单项选择题
He wanted very much to run for a second term, but owing to poor health, he was ______ to give it up.
A．driven
B．permitted
C．rebuked
D．compelled
单项选择题
The new teacher was very nervous ______ she was well prepared.
A．despite
B．unless
C．even
D．even though
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