单项选择题

Jean didn't have time to go to the concert last night because she was busy ______ for her examination.

A．to prepare
B．to be prepared
C．preparing
D．being prepared
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单项选择题
When we ______ one aspect of a problem, we tend to ignore the other aspects.
A．are absorbed on
B．are absorbed in
C．are absorbed to
D．are absorbed for
单项选择题
She is not accustomed to ______ what to do.
A．telling
B．being told
C．having told
D．tell
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