问题
选择题
—Why are you so nervous?
—To our great surprise, we found by the strangers.
A．we monitored
B．ourselves monitored
C．us to monitor
D．ourselves monitoring
答案
答案：B
本题考查非谓语动词。本题考查过去分词作宾语补足语，find sb done发现某人被……，句意：让我们很吃惊的是，我们发现被监视了，选B。