主题演讲之前播放了一段短视频。

The keynote speech was ___preceded by a short video presentation.

研讨会之前应有预习阅读以提高理解。

The workshop should be ___preceded by preparatory readings to enhance understanding.

在许多文化中，失去亲人后，哀悼期先于生命的庆祝。

In many cultures, a period of mourning ___precedes the celebration of life after a loss.