convincing 还是 convinced

Millions of people rushed to California, ________ that they would find gold and become rich.

A convincing B convinced

请问这里为何用被动ed?

这句话等于是如此的：

Millions of people rushed to California, where they are convinced that they would find gold and become rich.

convince 是使役动词，主动用时人是宾语，人是主语是就如果被动的了， 就是they （people）are convinced。大家被说服 。

但凡使役动词都是如此的，人做主语要被动。

非限制性定语从句中的关系代词和定语从句中的主语及be动词可以一块省去，让句子简化，就成了你的考试试题的样子了。选B convinced.

译文：数以百万计的人涌向加利福尼亚，他们（被说服）相信在那里能找到黄金并致富。