众所周知他不喜欢歌剧。

He ___is ___known ___to ___dislike opera.

她的车众所周知经常抛锚。

Her car was ___known ___to break down frequently.

首先，众所周知技术的发展会导致肥胖。

Firstly, the development of technology ___is ___known ___to ___cause obesity.