走了很长一段路后，我发现自己来到了一个从未见过的美丽公园。

After a long walk, I ___found ___myself at a beautiful park I'd never seen before.

我开错了门，突然发现自己置身于一个重要会议的现场。

I opened the wrong door and suddenly ___found ___myself in the middle of an important meeting.

想都没想，我发现自己跟着收音机里的歌哼唱起来。

Without thinking, I ___found ___myself humming along to the song on the radio.