скажите что это не так.употребите сокращённую форму глагола1- It is a

Скажите что это не так.употребите сокращённую форму глагола
1- It is a dog. .........a dog.
2- There is a dog in the car. ...........a dog in the car.
3- She will be late tomorrow. ........late tomorrow.
4- They are trees. ...................trees.
5- There are some trees near the old house. ..................trees near the old house.