Complete the dialogues. Exercise 3/9 (WB)

  's is isn't    

1 A: Who's Anna? 4 A: he your uncle?
B: She my sister. B: No, he .
2 A: she your aunt? 5 A: it your cat?
B: No, she . B: Yes, it .
3 A: How old your brother? 6 A: it your cat?
B: He sixteen. B: No, it .