Does he want a teddy?
No, he doesn't.
Does he want a teddy?
Yes, he does.
There is/are two motorbikes.
There are two motorbikes.
There is/are two cars.
There are two cars.
There is/are a lorry.
There is a lorry.
There is/are a train.
There is a train.
There isn't/aren't a book shop.
There isn't a book shop. There is a toy shop.
Let/Let's play a game.
Let's play a game.
Contraction for Let us
Let's
