单项选择题

It is extremely urgent that they ______ from the mountain before dark.

A．must be rescued
B．should rescue
C．can be rescued
D．be rescued
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单项选择题
He thinks he will do it himself ______ asking his parents for help.
A．rather than
B．other than
C．instead of
D．in place of
单项选择题
The man denied ______ anything at the supermarket when he was questioned by the police.
A．to have stolen
B．to steal
C．having stolen
D．having been stealing
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