Dear Jenny, My name is mary.I'm writing to you to introduce my family to you.There are four people in my family.They are my father,my mother,my sister and I.My father is a worker in a factory.My mother is a teacher in a middle school.My sister is a primary school student and she is 8 years old.I’m a middle school student and I’m 14 years old. Look forward to hear from you soon. Mary