我在图书馆偶然发现了一本有趣的书。

I ___found an interesting book by chance in the library.

他发现自己其实更喜欢安静的环境。

He ___found that he actually preferred quiet environments.

老师认为这个回答非常出色。

The teacher ___found the answer to be excellent.

这条小溪最终找到了通往湖泊的路径。

The stream eventually ___finds its path to the lake.