他的突然离开让办公室里的所有人都目瞪口呆。

His ___sudden departure left everyone in the office stunned.

公司的政策发生了突然的转变。

There has been a ___sudden shift in the company's policy.

我们都对她突然生病的消息感到震惊。

We were all shocked by the news of her ___sudden illness.