номер 4. Complete the following fragments of sentences by suitable infinitive phrases. 1. It was necessary to .... 2. It was clever of him to .... 3. It will be impossible to ....…

Here are some suitable infinitive phrases to complete the fragments of sentences:

1. It was necessary to study hard for the exam.
2. It was clever of him to solve the problem quickly.
3. It will be impossible to finish the project without additional help.
4. It surprised everybody to hear the unexpected announcement.
5. It was good of your aunt to help you with your studies.
6. Won't it hurt her to see her old friends moving on?
7. Don't you think it's romantic to watch the sunset together?
8. It isn't easy to balance work and personal life.
9. It will be wonderful to travel around the world.
10. Did it comfort you to know that I was here for you?

Feel free to adjust any of the phrases to better fit the context you are considering!