我总觉得有人在树丛后面鬼鬼祟祟地潜伏着。

I felt like someone was ___lurking behind the bushes.

尽管表面平静，危险可能就潜伏在阴影中。

Despite the calm surface, danger might be ___lurking in the shadows.

那个小偷潜伏在黑暗的巷子里，准备袭击路人。

The thief was ___lurking in the dark alley, waiting to attack passersby.