Long long ago there were only a few thousand people in the world. These people moved from place to place over the land, hunting animals for food.No one knows how or when these people learned about growing food. But when they did, their lives changed. They did not have to look for food any more. They could stay in one place and grow it.People began to live near one another. And so the first village grew. Many people came to work in the villages. These villages grew very big. When machines appeared (出现), life in the villages changed again. Factories were built. More and more people lived near the factories. The cities grew very big.Today some people are moving back to small towns. Can you tell why? The best title (题目) of the text should be .A.Cities or VillagesB.Back to TownsC.How Cities GrewD.People and AnimalsThe underlined word "they" in the second paragraph refers to (指的是) .A.villagesB.animalsC.citiesD.peopleWhen factories were built, .A.more people lived near the factoriesB.people began to live in the factoriesC.many people began to work in villagesD.many machines appeared in big factoriesWe can learn from the text that .A.people like to work only in big citiesB.perhaps some people don't like to live in big citiesC.there will be no small towns in the future (将来)D.it is better to live in cities than in villagesIn what order (顺序) did people do the following things? A.Worked in villagesB.Lived near the factories.C.Learned to grow food.D.Built factories.