Раскройте скобки и выберите глагол в требуемом зало­ге: действительном или страдательном.

[email protected] в категроии Английский язык, вопрос открыт 19.03.2018 в 19:15

1. Electronic devices (help; are helped) people discover new phenomena of nature. 2. The transistor (replaced; was replaced) by vacuum tubes thanks to its numerous advantages. 3. Due to transistors all circuit functions (carried out; were carried out) inside semiconductors. 4. Electronic devices (use; are used) in scientific research. 5. Before the invention of the transistor its function (performed; was performed) by vacuum tubes. 6. The reliability of electronic systems (connect; is connected) with the number of descrete components. 7. Semiconductor integrated circuits (helped; were helped) to increase reliability of devices. 8. New types of integrated circuits (have developed; have been developed) lately.