Open the brackets using the verbs in the passive voice. 1. by radio. (to transmit) 2. a new kind of invisible rays by rontgen in 1895. (to discover) 3. the efficiency of this next year. (to increase) 4. the an interesting problem at the research institute, (to offer) 5. new machinery at the plant by the end of the month, (to install) 6. an unusual electric into operation now. (to put) 7. the explanation of this yet. (to give) 8. yesterday the results of this by the presence of some impurities. (to prove) 9. this as an authority in optical electronics. (to look upon) 10. the quality of production already. (to increase) 11. many methods of making and storing electric charges during the 18th century. (to discover) 12 we just the tiniest motor. (to show) 13. the discovery of the electrons by the discovery of the proton and neutron. (to follow) 14. after the we could use it. (to repair) 15. what when the professor entered the lecture hall? (to discuss) 16. the performance of the new computers tomorrow. (to demonstrate) 17. at present the into electrical power by special solar panels. (to convert) 18. the robots now. (to

1. information is transmitted by radio. 2. a new kind of invisible rays were discovered  by rontgen in 1895. 3. the efficiency of this device will be increased  next year. 4. the engineer is offered  an interesting problem at the research institute 5. new machinery will have been installed  at the plant by the end of the month. 6. an unusual electric station is being put  into operation now. 7. the explanation  of this phenomenon hasn't been given yet. 8. yesterday the results of this experiment were proved  by the presence of some impurities. 9. this engineer is looked upon  as an authority  in optical electronics. 1 0. the quality of production has been already  increased. 11. many methods of making and storing electric charges were discovered  during the  18th century. 12 we were  just  shown  the tiniest motor. 13. the  discovery of the electrons were followed  by the discovery of the proton and neutron. 14. after the engine had been repaired we could use it. 15. what plan was being discussed  when  the professor entered the lecture hall? 16. the performance of the  new computers will be demonstrated  tomorrow. 17. at present the sunlight is (being) converted into  electrical power by special solar panels. 18. the robots now. не  дописано в условии

WRITING

2) 1.because
2.so
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