单项选择题

A．on
B．to
C．in
D．for
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单项选择题
A．needn’t botherB．didn’t need to botherC．needn’t have botheredD．mustn’t have bothered
A．needn’t bother
B．didn’t need to bother
C．needn’t have bothered
D．mustn’t have bothered
单项选择题
A．for beingB．to beC．on beingD．to have been
A．for being
B．to be
C．on being
D．to have been
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