单项选择题

They are busy ______ in their lessons before the exam.

A．going after
B．going over
C．going by
D．going ahead
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单项选择题
If I ______ an umbrella with me, I wouldn't get wet on that rainy day.
A．took
B．had taken
C．take
D．am taking
单项选择题
The party was over. Everyone ______ the exit.
A．made out
B．made for
C．made into
D．made up
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