N2. That are sheep. She has got boxes. These are men. There a strawberries. That are ostriches. There are mice.
N3.
1) Do Paul and Jim have a ball? Yes, they do. It's their ball.
2) Do they have bikes? Yes, they do. Those are their bikes.
3) Has Angela got a book? Yes, she does. It's her book.
4) Has it got a fish? Yes, it does. It's the cat's fish.
5) Do we have ice creams? Yes, we do. These are our ice creams.