1.Визначте час дієслова-присудка та перекладіть:

1. A simple experiment with a glass of water and a postcard will show you how real this pressure is.

2. Under ordinary circumstances light travels in straight lines and does not bend around the objects.

3. Instead of replying to my words he gave me the article he referred to in his report.

4. The apparatus will be working when you come.

5. In the sixties of that century electrical engineering was just making its first, rather timid, steps.

6. We have denoted work by the letter M.

7. The air around us has always been under pressure.

8. After I had finished the inspection of the new engine I spoke to the engineer.

9. Genetics is making a fresh surge forwards.

10. In the 17^th century alchemists used many materials in their search for “the philosopher’s stone”.

11. They did not find any above-norm concentrations of minerals in plants.

12. We have been considering the decay of unstable nuclei.

13. For many centuries scientists of the world have been successfully working to uncover still unsolved secrets of nature.

14. When I came they had already been discussing the problem for an hour.

15. Director was speaking to somebody on the telephone and the secretary was typing a letter.