Поставьте предложения в отрицательную и вопросительную форму 1 we are translating the article into russian. 2. they are conducting an important experiment in the laboratory now. 3. he will be making his report at 2 o'clock tomorrow. 4. the designers were estimating the construction cost for a week. 5. the smdents are having their preliminary in english now. 6. the scientist is experimenting with new construction materials. 7. we were taking calculations for the new bridge during our summer practice. 8. the population of the city is steadily growing. 9. the workers will be unloading the trucks after lunch. 10. he is laying bricks very quickly and carefully

1. We aren't translating the article into Russian. 
    Are we translating the article into Russian?
2. They aren't conducting an important experiment in the laboratory now. 
    Are they conducting an important experiment in the laboratory now?
3. He won't be making his report at 2 o'clock tomorrow. 
    Will he be making his report at 2 o'clock tomorrow?
4. The designers weren't estimating the construction cost for a week. 
    Were the designers estimating the construction cost for a week?
5. The students aren't having their preliminary in English now. 
    Are the students having their preliminary in English now?
6. The scientist isn't experimenting with new construction materials. 
    Is the scientist experimenting with new construction materials?
7. We weren't taking calculations for the new bridge during our summer practice. 
    Were we taking calculations for the new bridge during our summer practice? 
8. The population of the city isn't growing steadily.
    Is the population of the city steadily growing?
9. The workers won't be unloading the trucks after lunch. 
    Will the workers be unloading the trucks after lunch?
10. He isn't laying bricks very quickly and carefully.
      Is he laying bricks very quickly and carefully?