Поставьте следующие предложения во множественное число. 1. It isn't a tree.   2. It is not a bad egg.   3. It is a good egg.   4. Is that a flower? 5. This cup is dirty.   6. That biscuit was tasty. 7. This hotel is very expensive but it's very nice. 8. There is a children's playground in the park. 9. That is a new supermarket in our town. 10. It's a delicious lemon pie for dessert ​