данные предложение в отрицательно форме и ответы на них. Our flat is big. He is my friend. They are from Moscow. I am nine. The cats are black. Vera is in London.

Our flat isn't big (it's very small);
He isn't my friend (he's my brother);
They aren't from Moscow (they are from Portugal);
I'm not nine (I'm eleven);
The cats aren't black (they are brown);
Vera isn't in London (she is in Turkey).
В скобках - ответы.