Прочитайте предложения и скажите какие из них в активном залоге (Active Voice), а какие в пассивном (Passive Voice)
1. While the experiment was being carried out nobody left the laboratory. (Passive Voice)
2. A new type of computing equipment is being produced at our plant. (Passive Voice)
3. At present scientific work is being done mostly by large groups of researchers. (Passive Voice)
4. The apparatus will be working when you come. (Active Voice)
5. The scientists who are carrying out research into nuclear physics deal with the most difficult problems. (Active Voice)
6. For twenty minutes the air in the laboratory was being purified by two ventilators. (Passive Voice)
7. The solar battery is converting the energy of sun rays directly into electric energy. (Active Voice)
8. This experiment was being carried out under low pressure. (Passive Voice)
9. For a long time the electronic devices were being used for control. (Passive Voice)
10. An interesting research in the field of electronics is being done at our Institute. (Passive Voice)
11. Prospects of the usage of solar energy are already understood by everybody. (Passive Voice)
12. Now solar energy is being studied by a lot of research groups. (Passive Voice)
13. We were looking for a more simple method of solution but could not find it. (Active Voice)
14. The engineers will discuss the advantages of this new system. (Active Voice)
15. Our laboratory is housed in an old building. (Passive Voice)
2 have been farming
3 since
4 wants
5 had known
6 however
7 was chosen
8 have had