填空题 One day my friend and I 1 a firehouse. The fighters were very nice to us. They showed us the fire engines and told us how the equipment worked. I want to 2 the big ladder. They explained the bell system to us and told us how the fire-alarm box worked. Now we understand how dangerous it is when somebody 3 a false alarm. We also understand how dangerous it is to play with matches.
I think fire fighters are very brave. They rush into 4 buildings and rescue people who are trapped. They wear heavy raincoats, thick rubber boots and helmets. They usually carry axes so that they can break windows and doors to 5 the fire. It seems like a challenging way to earn a living.