问题
选择题
The manager promised to keep us______ of how our business was going on.
A．being informed
B．informed
C．informing
D．to be informed
答案
B
题目分析：句意：经理答应让我们及时了解我们的生意进行的情况。inform sb of sth告诉某人某事；其被动：sb be inform of这里是keep sb done,这里sb与do之间是被动关系，故选B。
