1)Everything is good when new,but friends when old.,东西是新的好，朋友是老的亲。2)He is an old friend of mine.,他是我的老朋友。3)He is a friend of our family,他是我家的朋友4)She's my girl friend.,她是我的女朋友。5)He is a friend of mine.(He is one of my friends.),他是我的朋友。6)Who are our friends?,谁是我们的朋友？
