根据短文内容，回答下面的问题。

Look at this photo. The boy's name is John. He has two sisters. The one in the white dress is his sister, Rose. The other (另外的) one in the yellow dress is his sister, Mary. Rose and Mary have the same age(年龄). They look the same. They are twins. John and his sisters are in different schools. They have good friends in the school. Their dad and mom are English teachers. They both like their students. The family (家庭) is nice.