单项选择题

A security officer at the factory, who ______ to give his name, said he had seen two men leave tile building.

A．descended
B．decreased
C．denounced
D．declined
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单项选择题
Most ______ are processed by computer at our Head Office.
A．translations
B．transactions
C．transitions
D．solutions
单项选择题
He was ______ on the telephone so I asked him to speak more clearly.
A．muttering
B．compiling
C．groping
D．certifying
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