traffic light

红灯停，绿灯行。

Stop at the red ___traffic ___light, go at the green one.

过马路前要看看交通灯。

Look at the ___traffic ___lights before you cross the road.

我们等交通灯变绿。

We wait for the ___traffic ___light to turn green.

这个路口有很多交通灯。

There are many ___traffic ___lights at this crossing.