单项选择题


A．was never
B．were never
C．have never been
D．has never been
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单项选择题
A．widenedB．overlookedC．neglectedD．reduced
A．widened
B．overlooked
C．neglected
D．reduced
单项选择题
A．forB．ofC．withoutD．with
A．for
B．of
C．without
D．with
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