灯光闪烁，气氛热烈。

The lights are ___flashing, and the atmosphere is exciting.

灯塔的信号灯在雾中不停闪烁。

The lighthouse signal was ___flashing continuously in the fog.

工人们在屋顶边缘安装了金属挡水条以防止雨水渗入。

Workers installed ___flashing along the roof edges to prevent water from seeping in.

交通灯突然闪了几下红灯。

The traffic light was ___flashing red suddenly.