单项选择题

Victor promised to keep his boss ______ what was going on in the factory.

A．to be informed
B．informing of
C．inform about
D．informed of
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A．thesisB．objectC．targetD．objective
A．thesis
B．object
C．target
D．objective
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A．nutritionB．nullityC．nuisanceD．nuance
A．nutrition
B．nullity
C．nuisance
D．nuance
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