Choose.
1 A: Are you wearing glasses?
B: a) Yes, he is.
b) Yes, I am.
2 A: Is the seal sleeping?
B: a) No, it is.
b) No, it isn't.
3 A: Are the girls picking flowers?
B: a) Yes, they aren't.
b) Yes, they are.
4. A: Are we wearing socks?
B: a) No, you aren't.
b) Yes, you aren't.​
