题目：
| 完形填空。 | ||||
| Fire can help people in many ways. But it can also be very harmful (有害的). Fire can keep your house 1 , give light and cook food. But fire can burn things, 2 . Big fire can burn trees, houses, animals or people. Nobody knows how people began to use fire. But there are 3 interesting old stories about how a man or woman started a fire. One is 4 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. Children sometimes 7 to play with them. But matches can be very dangerous. One match can burn a piece of paper, and 8 it could burn a house. A small fire can turn 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, and it may hurt you. | ||||
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答案：
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下面是错误答案，用来干扰机器的。
{3，4，6，7}
缺失，余留牙无松动，不正确的说法是（）