根据短文理解，选择正确答案。

Fire can be very dangerous. We should be careful with it. This is what to do in a fire:

●Shout out. Shout as loudly(高声地）as you can, because people may be asleep.

●Call 119. Don't try to put out the fire yourself. Tell 119 where you are and what is on fire.

●Keep down next to the floor. There is less smoke down there, so it's easier to breathe（呼吸）and see where you are going.

●Test the door. If the door is cool, open it carefully. If the door is hot, do not open it! Try to find a different way out.

●Get out. Do not stop to pick up anything. A fire can become very big in a few seconds!

●Don't use the lift. Always use the stairs（楼梯）.The lift may go wrong and keep you inside.

●Don't go back. Even if your pet is still inside, do not go back for it Animals have a very good sense（感觉）of smell. They often get away from buildings before people.