将下列句子排序，使其成为一段完整、通顺的短文。

A. My father is their son.

B. They are my grandfather, my grandmother, my father, my mother and me.

C. I'll show you my family.

D. He is a teacher and he loves our family.

E. There are five people in my family.

F. My grandfather and grandmother are old.

⑴    C        ⑵⑶⑷⑸⑹