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    Mary, Jane and May are good friends. Their mother are also good friends. So they were good friends from a very young age. They are in the same(相同的) school - Qing Lan Primary School and they always go to school together every day. Mary is shorter than May, and May is heavier than Jane. Jane is thinner than Mary. How old are they? Mary is 7 years old. Jane is 12 years old and May is 9 years old. Mary likes English, Jane likes maths and May likes music. They all study hard and like helping others. All of them like each other very much.