单项选择题

The number of his ______ has increased three times these years.

A．employment
B．employers
C．employs
D．employees
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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
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
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