Scientists should be kept_____ of the latest developments in their research area

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问题 Scientists should be kept_____ of the latest developments in their research areas.

选项 A、inform
B、informing
C、informed
D、to inform

答案 C

解析本题考查分词作主语补足语昀用法。依据常理我们可以判断，句中的scientists与inform是被动关系，因而只能选择-ed分词形式作为主语的补足语，构成keep sb．informed的结构，因此C项正确。

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