Помогите сделать 4, только составить предложения

1)there are five children in the park. 2)there is a cat on the sofa 3)there are three little balls on the floor 4)there are two apple-trees in the yard 5)there is a dog in the big hall 6)there are four birds in the tree 7)there are a lot of flowers in the field 8)there are ten pears in the tree 9)there is a cake in the picture