1. Concrete is the main building material. Цемент - это основной строительный материал. 2. The plant doesn't produce more than 500 units of finished products a month. Растение не производит больше 500 единиц готового продукта в месяц. 3. Why do enterprises install solar panels? Почему предприятия устанавливают солнечные панели (батареи)? 4. Iron rust is in contact with air and water. Железная ржавчина вступает в контакт с воздухом и водой. 5. The machine wasn't working because the transmission system was out of order. Машина не работала, потому что система передачи вышла из строя.
1. b) is, it 2. c) , , 3. d) the other 4. a) hardly, lately 5. b) have not seen, did you see, met, think, changed 6. d) published, has become 7. a) had met 8. d) is, will go 9. b) are starting, will have finished 10. a) is being built 11. a) said, was, would not go 12. a) not to be 13. b) to be starting, to get wet through 14. b) trying, to improve 15. b) having worked 16. c) on seeing, come in, having welcomed, as usual 17. b) must have been 18. b) should have done 19. c) may come 20. b) his, such, didn’t he 21. b) to address, knew 22. a) in, on, as, until, by 23. a) the, , the, the
