Прочитай предложения isn't или aren't. и обведи

1. There isn't a teddy bear on the shelf.
2. There isn't a toy in the toy box.
3. There aren't animals at the circus.
4. There aren't birds in the park.
5. There isn't a cat at home.
6. There aren't children at school.
7. There isn't a clown at the circus.
8. There isn't a frog in the pond.
9. There isn't a fox under the tree.
10. There aren't elephants in the zoo.