Ответ:

10. There is an orange..

11. Is there an onion..

12. Is there a coffee

13. There isn't a bottle..

14. There are a pears..

15. There is a water..

16. There aren't any potatoes

17. There is an egg..

Объяснение:

Is- один предмет

Are - много

А- перед гласным

Аn- согласным