阅读下面短文,从短文后所给的A、B、C三个选项中选出能填入相应空白处的最佳选项。
Fire can help people in many ways. But it can also be very harmful.
Fire can keep your house 1, give light and cook food. But fire can burn things 2 . Big fire can burn trees, houses, animals and people.
Nobody knows how people began to use fire. But there are 3interesting old stories about how a man or a woman started a fire. One is4 a man. The man 5 a very long time ago. He went up to the Sun and 6 fire down.
Today people know how to make a fire with matches(火柴). Children sometimes 7 to play with them. But matches can be very dangerous. One match can burn a piece of paper, and 8 it can burn a house. A small fire can turn into a big fire very quickly. So you 9 be careful with matches.
Be careful with fire, and it will 10 you. But if you aren't careful with fire, it may hurt you.