(2013·皖南八校二联)It is necessary that we keep the young generation of the current affairs.
A. informed
B. being informed
C. informing
D. to inform
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(答案→)A. informed
B. being informed
C. informing
D. to inform
解析：选A 考查非谓语动词。句意：让年轻一代时刻了解时事是很有必要的。the young generation与inform之间是逻辑上的动宾关系，故用informed。