Ответ:

1. There is, in. 2. There are, in. 3. There is, on. 4. There are, in. 5. There are, in. 6. There is, on. 7.There are, in. 8. There is, on. 9. There is, on. 10. There are, in.

Объяснение:

Множ. число - are, единственное - is