这座城市有几家历史悠久的老剧院。

There are several historic ___theatres in this city.

教授在阶梯教室里进行了一次生动的解剖演示。

The professor gave a vivid anatomy demonstration in the lecture ___theatre.

他在政治舞台上留下了自己的印记。

He made his mark in the ___theater of politics.