单项选择题

________your help, they'd never have been able to overcome the difficulties.

A．Were it not
B．If it was not
C．Had it not been for
D．Had it not for
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单项选择题
At first Tim insisted he was right, but then began to ______.
A．back down
B．follow up
C．drop off
D．break out
单项选择题
I would never have _______Jim of committing the theft.
A．charged
B．convicted
C．suspected
D．reminded
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