— How do you know so much about what’s going on in the countryside?— I’ve got a friend the

— How do you know so much about what’s going on in the countryside?
— I’ve got a friend there who keeps me .
A. informing
B. to be informed
C. informed
D. being informed

A. informingB. to be informed(答案→)C. informedD. being informed解析：考查分词用法。Inform sb of sth通知某人某事。Sb与inform构成被动关系。所以使用Keep sb informed.

就是这个解释