Make the following sentences: a) negative; b) interrogative (general questions). 1. bessemer was always trying some new idea. 2. our colleagues are now performing a new set of experiments. 3. the conference is coming to an end now. 4. they will be collecting the data for six weeks. 5. we were discussing some recent works in the field of physics at the conference yesterday. 6. a direct-current motor is driving water-cooling pumps. 7. the sun is emitting energy. 8. he was conducting important observations for some hours two days ago. 9. she will be talking to her scientific adviser at 6 p.m. tomorrow. 10. i shall be writing about some works in the field of my speciality tomorrow’s night. (ответ полностью, )

1. Bessemer wasn't always trying some new idea.
Was Bessemer  always trying some new idea?
 2. Our colleagues aren't now performing a new set of experiments.
Are our colleagues now performing a new set of experiments?
3. The conference isn't coming to an end now.
Is the conference  coming to an end now?
4. They won't be collecting the data for six weeks.
Will they be collecting the data for six weeks?
5. We weren't discussing
any recent works in the field of physics at the conference yesterday.
Were we  discussing
any recent works in the field of physics at the conference yesterday?
6. A direct-current motor isn't driving water-cooling pumps.
Is a direct-current motor  driving water-cooling pumps?
7. The sun isn't emitting energy.
Is the sun  emitting energy?
8. He wasn't conducting important observations for some hours two days ago.
Was he  conducting important observations for some hours two days ago?
9. She won't be talking to her scientific adviser at 6 p.m. tomorrow.
Will she be talking to her scientific adviser at 6 p.m. tomorrow? 
10. I shan't be writing about some works in the field of my speciality tomorrow’s
night. 
Shall I  be writing about some works in the field of my speciality tomorrow’s
night?