Реши 15 номер 15 Complete the sentences with the correct form of the present perfect or past simple tense. 1. Success of the Yablochkov candle in 1878 all around the world (exceed) all expectations - mass media (write) about the outstanding invention of a Russian scientist. (be) a subject of scientific interest since at least the seventeenth century. 2. Electricity 3. In the 19th century the subject of electrical engineering with tools of modern research techniques, (start) to intensify. 4. Electricity is used with telecommunications, and indeed the electrical telegraph, demonstrated in 1837 by Cooke and Wheatstone (be) one of its earliest applications. 5. Electricity is the best source of energy. While there are other sources of energy none of them (reach) the stage where they can be used to provide the power to help modem life go. 6. The processes used to produce electricity using the sun's energy historically (be) more expensive than using conventional fossil fuels. 7. In 2015, less than 1% of the nation's electricity (supply) by solar power. (quantify) the relation between electrical current and 8. In 1827 Georg Simon Ohm potential difference between conductors leading to Ohm's law.
Конечно, давай разберемся с заданием №15. Нам нужно вставить глаголы в правильной форме времени: Present Perfect или Past Simple. Вот подходящее решение:
Success of the Yablochkov candle in 1878 all around the world exceeded all expectations - mass media wrote about the outstanding invention of a Russian scientist.
Electricity has been a subject of scientific interest since at least the seventeenth century.
In the 19th century, the subject of electrical engineering started to intensify with tools of modern research techniques.
Electricity is used with telecommunications, and indeed the electrical telegraph, demonstrated in 1837 by Cooke and Wheatstone was one of its earliest applications.
Electricity is the best source of energy. While there are other sources of energy, none of them has reached the stage where they can be used to provide the power to help modern life go.
The processes used to produce electricity using the sun's energy historically have been more expensive than using conventional fossil fuels.
In 2015, less than 1% of the nation's electricity was supplied by solar power.
In 1827 Georg Simon Ohm quantified the relation between electrical current and potential difference between conductors leading to Ohm's law.
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