Требуемые условия завершения
Exercise 9. Find the mistakes and correct them.
- Sydney Harbour Bridge was building in 1932.
- While they were carrying out tests in the laboratories. researchers were analysing past results.
- The first real road builders in Britain was the Romans.
- The Romans built roads of layers of broken stones of various sizes and were covering them with flat stones.
- The system didn't working because the loudspeaker had been wrongly connected.
- Before factories were told to stop polluting the environment, waste was being dumped in rivers and in the sea.
- Louis Pasteur was discovering the action of germs while he was studying fermentation in wines.
- The production process had already been shut down when the leak in the fuel tank was found.
- Nuclear energy began to be used from the mid-1950s.
- In the second half of the 20th century, the electronics industry transforming the way we work in factories.