16. Переведите предложения и определите время глагола-сказуемого.

1. We have been reading the newspaper for two hours. 2. He has been working at our mill since 1933. 3. By the first of September he will have been working at our mill for 34 years. 4, They had been playing tennis for two hours when we came to the park. How long have you been playing tennis? 6. It had been raining for some days when we started on our expedition. 7. How long had you been speaking English when you entered our Institute?

17. Напишите предложения в вопросительной форме.

1. We have been observing Mars for a long time. 2. He had been studying English for some years when he entered our Insti­tute. 3. My friend has been playing football for a long time. 4. The expedition starts next month. It is being supplied with all necessary equipment. 5. He is making a report. 6. He is be asked many questions. 7. A delegation of English engineers has come to our mill. 8. They are being shown our shops and labora­tories. 9. The experiment had been completed by the end of the year. 10. Her plans have been already changed. 11. The new appa­ratus has already been installed in the laboratory.

18. Переведите следующие предложения и объясните употребление того или иного времени в каждом из них.

1. When I came into the laboratory at 10 o'clock, my friend was making an interesting experiment. How it is one o'clock - my friend is still making his experiment. How long has he been working in the laboratory? 2. When did you get your diploma? -I got my diploma last year. What have you been doing since that time? - I have been working at the factory. Have you ever worked at a factory before? - Yes, 1 have. I had worked at the factory before I entered the Institute. if-had been wooing there for three years by that time. 3. Water boils at 100°C. What is boil­ing on that gas stove? -This is water. It is being boiled for Comrade N's experiment. He has already boiled some litres of water. 4. In 1931 Professor Plooard attracted everybody's inte­rest by his flight to a height of about tea miles. At this point the pressure of air was 3.2 inches, as compared with 30 inches at the earth's surface. Professor Plooard and his assistant were lifted in a closed metallic spherical cabin. What were they trying to find out? The two scientists were collecting some data on the temperatures of upper atmosphere. They had been given a supply of compressed air and thus could remain in the cabin for some hours.

19. Переведите предложения и определите, какой формой глагола (время, залог) выражено сказуемое.

1. His work was being looked upon as useless. 2. The ques­tion about the new laboratory was being discussed at a special meeting. 3. We had been discussing the question for come time, when you came to the meeting. 4. Different kinds of fruit are being grown in the Polar zone. 5. By the fifth of March you will have been working in our shop for two years. 6. The work is due being finished. 7. Water which contains harmful bacteria is boiled. 8. While the water is boiling all the bacteria die, as they cannot live at the temperature of boiling water. 9. While the water is being boiled some of it is becoming steam. 10. Many new houses are built in our city. 11. A big house for the workers of our mill is being built not far from the mill. 12. The plan of the building was discussed several times. 13. Last time it was being discussed for several hours by the best architects of the city. 14. They discussed every detail of the building. 15. While they were discussing it, they changed some details.