There are more than fifty _________ in our school.

My uncle is John Smith. We can call（称呼）him _______.

— Could you please tell me something about the two_   ?— ____. They arc exchange students of No. 1 Middle School.

---How many _______do you have？　　　　　　---Let me see, my father has two brothers.  

My aunt has a ___________ .