to,also,fire,keep,they,their,safe,used,families 连成完整的句子

to,also,fire,keep,they,their,safe,used,families 连成完整的句子 They also help to keep people happpy. they also used fire to give them light and keep them warm in winter.本句中and连接的是什么?keep前是否省略了to?为什么．求详细 英语翻译Fire can help people in many ways.But it can also be very harmful.Fire can keep your house warm,give light and cook food.But fire can burn things,too.Big fire can burn trees,houses,animals or people.Nobody knows how people began to use fi People used fire to keep warm ang drive a___ animals. Workers also use fire to make glass.Workers useWorkers also use fire to make glass.Workers use fire to make glass_ _. 英语翻译The FireFire can help people in many ways.But it can also be very harmful.Fire can keep our house warm,give light and cook food.But fire can burn things,too.Big fire can burn trees,houses,animals or people.Children sometimes like to play they made fire ( )in winter.A,and keep warm B,to keep warm C,kept warm Why don't you make a fire warmA keep B to keep C keeping D kept A Fire can help people in many ways.But it can also be very harmful.Fire can keep your house 1,give Fire fighting is done to isolate the material from surrounding fire and keep up-wind to avoid smoke. it's cold.let's make a fire to keep the room warm.这句中的to keep fire to Keep The Fire Burning 歌词 Keep This Fire Burning 歌词 put a and fire to a up made they tent warm keep 连词成句put a and fire to a up made they tent warm keep make a fire to keep us warm and cool foot on .什么意思?