单项选择题

The bold word "it" refers to which of the fallowing

A．Problem.
B．Material.
C．Difficulty.
D．System.
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单项选择题
A．Where is the manager nowB．Who will be his new managerC．Whether his manager is ill.D．When the manager will go to the headquarters.
A．Where is the manager now
B．Who will be his new manager
C．Whether his manager is ill.
D．When the manager will go to the headquarters.
单项选择题
We are still ______ things here, but I can't guarantee the situation will stay that way.
A．in memory of
B．in search of
C．in control of
D．in need of
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