Form the necessary derivatives from the words on the right and complete the sentences. Помогите пожалуйста 1. The exercise

1. The exercise was very long. I thought it was endless. 2. I thought the illustrations were better than the text. 3. The softness of her voice calmed the old lady. 4. John is a very careless driver. I don’t like to travel with him in the car. 5. I personally think that the new project is rather difficult. 6. What is the population of this area? 7. People should do more for the protection of the environment.