Поставьте предложения в отрицательную форму (Present Indefinite Tense)
1. Peter buys a morning newspaper every day.
2. They go to the seaside every summer.
3. It often  rains in summer. 
 4. He usually comes to his office at 9 o’clock.
 5. An academic group at the university usually consists of 20-25 students.
 6. The sun rises in the East.
 7. You prefer going to the forest. 
8. This professor delivers lectures at our University.
 9. We spend much time at the laboratory.
10.  I regularly answer all the letters