Put 'to be'
                +I _______ in the zoo.
I am in the zoo.
-I ___________ at school.
I am not at school.
two / are / There / big / schools / .
There are two big schools.
+They __________ on the bed.
They are on the bed.
-We _________ in the toy shop.
We aren't in the toy shop.
a / There / white / isn't / mat / .
There isn't a white mat.
-You _________ in the house.
You aren't in the house.
men / aren't / There / two / .
There aren't two men.
+It _________ in the fridge.
It is in the fridge.
is / a / There / black / sheep / .
There is a black sheep.
-He __________ under the mat.
He isn't under the mat.
children / There / is / and / a picture / there / aren't / .
There is a picture and there aren't children.