Our manager asked us to keep him of what was going on there.
A. informing
B. to be informed
C. informed
D. being informed
网友回答
A. informing
B. to be informed
(答案→)C. informed
D. being informed
解析：考查短语：keep sb informed of 使某人了解……，句意：我们的经理要求我们使他了解那进行的事情。所以选C。