Задание 4.Пожалуйста подскажите как написать правильно

2. No there isn't 
There are two dolls under the sofa 
3. No there aren't 
There is one mirror on the shelf 
4. No there aren't 
There are five apples on the piano 

1.No, there is not. There are two mice under the sofa.
2.No, there aren't. There is one mirrow on the shelf.
3.No, there aren't. There are four Apples on the piano.