1. The main aim of our students is [A — speaks /B — speaking/ C – spoke] English perfectly. 2. I know of his [A — to sent /B — to be sent / C – being sent ] to most fires in this town.
3. Water is one of the most common [A — extinguishing / В — extinguisher / С - extinguished] medium.
4. Carbon dioxide as an [A — extinguishes /B — to extinguish / C – extinguishing] agent is widely employed in fixed installations.
5. A turntable ladder is an escape [A — fixed /B- to fixed /C – fixes] to a turntable, by means of which it can be rotated .
6. Не likes [A — read/B — reading /C – ready] books.
7. Firemen are [A — keeping /B — had been keeping /C – to keep] fit their equipment to be ready to respond to a fire as quick as possible.
8. Hazardous materials [A — involving / B — to involved /C – involved] in a fire were in the building.
9. The [A — have blanketing / B — blanketing / C – had blanketing] of oxygen exclusion is most effective.
10. The introduction of inert gases, foam equipment, vapourizing liquids and dry powders is expected [A — widen /B — to widen /C –wide] the scope of attack.
11. Fire fighters [A — extinguishing /B — extinguish/C – extinguished] deep-seated fires should be especially careful.
12. The fireman displayed great skill in [A — being extinguishing /B — extinguishing/C – extinguish] the fire.
13. He couldn’t move the leg [A — have injured /B — injured /C – injuring] in a fire.
14. A child [A/ was warned /B — warned /C – have warned ] about the danger of playing with a fire.
15. Efforts directed at [A — being depriving / B — depriving / C – to depriving] the fire of oxygen are called smothering.
