句子搭配。

( ) 1. How many people are there in your family? 

(     ) 2. Who are they? 

(     ) 3. What's your uncle?

(     ) 4. Is this your aunt?

A. There are five people in the family.

B. Yes, she is.

C. My uncle is a teacher.

D. They are my father, my mother, my uncle, my aunt and me.