Uzupełnij poprawną formę wyrazów pogrubioną czcionką, tworząc rzeczowniki od przymiotników.

1. Stop this ... right now! said the teacher. foolish
2. ... of the scientist's mathematical formula took years. perfect
3. They sat in ... as they waited for their test results. silent
4. Luke closed his office door in hope of getting some ... . private
5. After hearing the shocking news Beth lost ... . conscious
6. For your own ... please fasten your seat belts while on board. safe
7. People often underestimate the ... of a good night's sleep. important
8. Despite what we may think money can't buy ... . happy
9. Her detective stories have gained in... recently. popular
10. In the ... of the night, everything was still and nothing could be heard. dark