问题补充:
I hope you will keep us of how you are getting on with the work.
A. inform
B. informing
C. to inform
D. informed
答案:
A. inform
B. informing
C. to inform
(答案→)D. informed
解析:考查过去分词作宾补。短语:keep sb informed of sth 使某人了解某事,句意:我希望你要使我们了解你的工作进展的如何。所以选D。