Question

Six of the following sentences contain mistakes. Find the mistakes and correct them.

a) Sydney Harbour Bridge was building in 1932.

b) While they were carrying out tests in the laboratories. Researchers were analysing past results. c) The first real road builders in Britain was the Romans.

d) The Romans built roads of stones of various sizes and were covering them with flat stones.

e) The system didn't working because the loudspeaker had been wrongly connected. f) Before factories were told to stop polluting the environment, waste was being dumped in rivers and in

the sea.

g) Louis Pasteur was discovertng the action of germns while he was studying fermentation in wines. h) The production process had already been shut down when the leak in the fuel tank was found.

i) Nuclear energy began to be used in the mid-1950 j) In the second half of the 20 th century, the electronics industrv transforming the way we work in factories

Answer 1

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