响亮的警报声吵醒了大楼里的所有人。

The loud ___alarm woke everyone in the building.

烟雾警报器能在火灾中挽救你的生命。

A smoke ___alarm can save your life in a fire.

火警警报响了，所以我们所有人都离开了办公室。

The fire ___alarm went off, so we all left the office.