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Перепишите и переведите предложения, обращая внимание на употребление времён группы Indefinite (Present, Past, Future) в страдательном залоге. Выпишите сказуемые и укажите их видовременные формы.
1) Railways are used as a means of freight and passenger transportation.
2) Many developments were introduced on railways to make them an efficient means of communication.
3) A speed of 160 kph is developed by modern locomotives.
4) They were told about the change in the time-table.
5) The introduction of electric traction on railway was spoken about at the end of the 19th century.