单项选择题


A．are
B．be
C．are being
D．were
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单项选择题
The United States is trying to _________ the serious problems created by the energy crisis.
A．put up with
B．submit to
C．comply with
D．cope with
单项选择题
A．itemsB．toysC．setsD．series
A．items
B．toys
C．sets
D．series
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