问题
选择题
It took us several hours to make the old man ________ of the safety of travelling by air.
A．believed
B．convinced
C．informed
D．persuaded
答案
答案：B
题目分析：A. believed相信，B. convinced使…相信，C. informed通知，D. persuaded说服，句意：花了我们几个小时使这个老人相信乘飞机的安全。Convince sb of sth“使某人相信…”,sb be convinced of…，所以用过去分词做宾语补足语，所以选B。