只是简单的被动语态

在这句话里认为是adj，没问题。

怎么看都可以，认为被动也行，看成形容词也可以。

支持5楼。
在adj性与被动之间有个灰度区。有by肯定是动词被动，其它有两类分析也算正常

Viewers saw the pyramids in Egypt, the Acropolis in Greece, the River Thames in Britain, baseball games in the United States, and much more. The show was also packed with ideas and issues.
"In those early years, we talked about ecological problems, environmental problems, housing for the poor, equal rights for women in Sweden. I talked about things like that, which they (Chinese people) hadn't even started to think about at that time," Kan said. "The goal was to give a global view to the Chinese audience."