单项选择题

Were it not for their support and help, we ______ able to finish the task ahead of time.

A．were not
B．should not have been
C．are not
D．would not be
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单项选择题
Some old people don't like pop songs because they can't ______ so much noise.
A．resist
B．experience
C．tolerate
D．sustain
单项选择题
He kept a ______ hold on her hand as he helped her over the fence.
A．solid
B．stiff
C．firm
D．rigid
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