单项选择题

We came into this field late, so we must work hard to _______ lost time.

A．make up for
B．make out
C．keep up with
D．put up with
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单项选择题
The mayor of the town is a _______ old man.
A． respective
B．respectful
C． respectable
D．respect
单项选择题
One ought for what one hasn't done.
A． not to be punished
B．to not be punished
C．to not punished
D．not be punished
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