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Open the brackets and use the verb in the correct tense. 1. She saw that everybody (to look) at her, and she (to feel) shy. 2. I (to know) him since he (to come) here. 3. We (not to be) late if she (to return) earlier. 4. John always (to behave) as he (to like 5. He (to be) ill for half a year and as a result he lost his job. 6. If the Dean (to come) at 5, we (to begin) the meeting on time. 7. They (to solve) this problem at the moment. 8. The man who (to wait) in the office (to want) to speak to you. 9. I never (to see) a smile on your face. 10. When I (to meet) him, he (to tell) me that healready (to graduate) from the University. 11. She (to run) a race in 3 days. 12. Don't make any noise! Father (to sleep). 13. You ever (to be) to Japan? 14. Last night He (to go) to bed early, because he (to be) tired. 15. They (to watch) an interesting film today.
Ответы
comes up, because street lights need a power supply. British firms offer new appliances, such as solar-powered street lights. They work by using energy accumulated during the day from a solar panel. The batteries are being charged during the day and then it's power is used for lighting. The system can be used for one individual light or a number of them. In the south of Saudi Arabia a motorway tunnel miles from any power supply is lit day and night by solar-powered devices. The advantages of sun-powered lamps are
that they can bring light to areas distant from any other power supply and that they do not pollute the environment.