herald|heralded|heralding

这位传令官带来了胜利的消息。

The ___herald brought news of the victory.

智能手机的出现预示着一个科技新时代的到来。

The invention of smartphones ___heralded the dawn of a new technological age.

晨鸟的鸣叫声宣告着黎明的到来。

The singing of morning birds is ___heralding the arrival of dawn.