3. Transform the sentences given in the Active Voice into the Passive Voice.
1. As we know, Swedes launched the world's first partly automatic car phone system. 2. Modern mobile phones support many additional services. 3. Martin Cooper demonstrated the first practical mobile phone for hand- held use in 1973. 4. Researchers are working at the implementation of the newest technologies for mobile phones. 5. Japan scientists have already in- troduced several phone series with modern features. 6. Manufacturers dif- ferentiate mobile phones to make them more attractive to consumers. 7. We can find many new features on mobile phones to our liking. 8. GSM mobile phones require a small microchip called SIM card. 9. Students had read and written down the unknown words before they started reading the new text. 10. Many users refer to BlackBerry smartphones as "berries" or simply "BB."
1. As we know, Swedes launched the world's first partly automatic car phone system. 2. Modern mobile phones support many additional services. 3. Martin Cooper demonstrated the first practical mobile phone for hand- held use in 1973. 4. Researchers are working at the implementation of the newest technologies for mobile phones. 5. Japan scientists have already in- troduced several phone series with modern features. 6. Manufacturers dif- ferentiate mobile phones to make them more attractive to consumers. 7. We can find many new features on mobile phones to our liking. 8. GSM mobile phones require a small microchip called SIM card. 9. Students had read and written down the unknown words before they started reading the new text. 10. Many users refer to BlackBerry smartphones as "berries" or simply "BB."
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As we know, the world's first partly automatic car phone system was launched by Swedes. 2. Many additional services are supported by modern mobile phones. 3. The first practical mobile phone for hand- held use was demonstrated by Martin Cooper in 1973. 4. The implementation of the newest technologies for mobile phones are being worked at by researchers. 5. Several phone series with modern features have already been introduced by Japan scientists. 6. Mobile phones are differentiated by manufacturers to make them more attractive to consumers. 7. Many new features on mobile phones can be found by us to our liking. 8. A small microchip called SIM card is required by GSM mobile phones. 9. The unknown words had been read and written by students before they started reading the new text. 10. BlackBerry smartphones are referred by many users as "berries" or simply "BB."
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