Task 3. Complete the sentences with the correct active or passive form of the verbs in brackets. (Future Simple, Present Simple and Past Simple)
1. The first e-mail(send) by Ray Tomlinson in 1971.
2. In 1990, Tim Berners-Lee(develop) the World Wide Web.
3. In the future, many diseases(treat) using DNA or gene therapy.
4.radio waves(use) to communicate with other planets in the
future?
5. How many illnesses(prevent) by using penicillin nowadays?
6. The first radio waves(transmit) by Marconi in 1895.
7. Louis Daguerre(take) the first photograph in 1839.
8. Today, e-mails(send) by millions of people all over the world.
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