A．City life is much the same in many parts of the world.B．In the United States, farm families live on their own farms.C．In many parts of the world, farmers live in villages.D．Farmer families in the United States have more children than families in the city.
A．City life is much the same in many parts of the world.
B．In the United States, farm families live on their own farms.
C．In many parts of the world, farmers live in villages.
D．Farmer families in the United States have more children than families in the city.