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. Correct the mistakes in the following sentences. Pay attention to the use of Simple, Progressive, Perfect (Active and Passive Voice)
tense forms.
1. Marconi has invented a wireless telegraph system in 1896.
2. Since 2014 Jane was working for MediaGroup, the biggest company in the region.
3. Professor Jonson was given a lecture on information technology at
11 a.m. tomorrow.
4. All the articles on biosensors will be translated by last Friday.
5. A new model of the printer is showing tomorrow.
6. System errors affects the computer or its peripherals.
7. Were they studying the operating systems next term?
8. Have you passed the exam on programming languages by 5 p.m.
tomorrow?
9. We has replaced copper lines with fiber-optic cables.
10. Semiconductors were made it possible to develop much smaller
portable radios.
11. The first version of Microsoft Windows were being introduced in 1985.
12. When I calling my friend he compiled a program.
13. Alexander will studied C and C ++ by next year.
14. Pavel is often being asked to make a report at conferences.

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Will see them at the party 2.andrew's brother have gone (went) to the library three times the month.

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