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Everybody has a home. People have homes. Animals also have their homes. People live in many different kinds of houses. Animals have different kinds of houses too. Some animals live in holes under the ground. Woodchucks（土拨鼠）live under the ground. Its home has two doors. If any enemy（敌人）comes through one door, the woodchuck will go out through the other one. Some animals live in holes or in trees. Birds build their nests（窝）high in the trees. Onlyhawksbuild their nests in the mountains. They like flying high in the sky.