The manager promised to keep me of how our business was going on.
A. to be informed
B. on informing
C. informed
D. informing
网友回答
A. to be informed
B. on informing
(答案→)C. informed
D. informing
解析:考查“inform 的用法。” “我”和 inform 之间存在动宾关系,“我”是被通知的对象,所以 inform 应使用过去分词形式,在句中作宾补。选C.