нужно вставить формы isn't,aren't,'m not .

1. I'm not a hippo.
2. You aren't a girl.
3. It isn't a god.
4. Andy and Tim aren't sad.
5. James and I aren't tall.
6. Barbara isn't funny.
7. A tomato isn't brown.
8. A banana isn't purple.
9. I'm not ten. 
10. You and Kate aren't old.
11. I'm not sorry.
12. He isn't young.