2раскройте скобки, употребляя глаголы в active или passive voice. 8. many people, including engineers and construction experts, (to involve) in figuring out what type of road should be made. 9. smart materials are materials (to change) their properties in response to external conditions 10. gasoline car engines (to use) spark ignition whereas diesel engines use compression ignition. 11. some construction work (to do) in park avenue now. 12. the pavement (to widen) recently. 13. street lights (to replace) a year ago. 14. the talks still (to hold). 15. huge blocks of flats (to build) all last year. 15. bill gates and paul allen (to found) traf-o-data in 1971 to sell their computer traffic-analysis systems.
