Ben and Jim are twin(双胞胎) brothers. They are nine. They are students. They are in the same class. Every day they go to school and come back together. Their teacher, Mrs Green, says to the students, Please write a composition(作文) "My Mother". Jim is a good boy. He writes the composition at home. But Ben plays football with his friends. The next day Mrs Green says to the class，I read your compositions today. But two of yours are just the same. Ben stands up and says, Jim and l are twins. We have the same mother.
