Преобразуйте следующие предложения в Passive Voice.
1. Computers solve many problems.
2. We apply computers for automatic piloting and automatic navigation.
3. When did scientists invent the transistor?
4. People widely use electronic devices.
5. Electronic devices control the work of power stations.
6. Scientists designed a variety of tubes for specialized functions.
7. Jack Kilby developed the concept of integrating device.
8. He built the first IC in 1958.