题目：
The manager promised to keep me_______ how our business was going on. A.informing of B.informed of C.to inform of D.on informing 答案：B 考查固定结构。Inform sb of sth通知某人某事;sb与inform构成被动关系，所以形成keep sb informed of sth通知某人某事;句意：经理答应通知我生意的进展情况。
