单项选择题

In those days, our ______concern was to provide people who were stopped by the snow storm with food and health care.

A．normal
B．constant
C．permanent
D．primary
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单项选择题
The present situation is very complex, so I think it will take me some time to ______its reality.
A．make up
B．figure out
C．look through
D．put off
单项选择题
He is very popular among his students as he always tries to make them ______in his lectures.
A． interested
B．interesting
C．interest
D．to interest
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