Английский язык, грамматика

1.I know of their [A — used/ B — using/ C – useless ] water to extinguish small fires of wood and paper.

2.[A — reading / B — read/ C – is reading ] is useful to everybody. Let’s read!

3.The function of a [A — breathe/B — breathed /C – breathing] apparatus is to enable people to work in an atmosphere that doesn’t support life.

4.Sprinklers and drenchers are [A —fixed /B — fixes /C –to fix ] fire protection installations.

5.There are many ways of [A — to translate /B — translating / C – translate] the Gerund into Russian.

6.Training in the college is kept to the required standard [A — ensure /B — is ensuring /C – ensuring] good knowledge for the students.

7.Members of the brigade should give first aid to the [A — shocked /B — shocking /C – have shocked] persons.

8.You can't leave without [A — to saying /B — saying /C – to be saying] good-bye to them.

9.All the students [A — graduating /B — had been graduating / C – graduate] from the Institute were involved in passing their exams.

10.A steam engine is driven by [A — introduced /B — introducing /C – to introduce] steam into cylinders.

11.All the work was [A — carried /B — carry /C – to being carry ] out in time.

12.The [A — smother /B — smothering /C –being smothering ] of oxygen exclusion is most effective.

13.A [A — smolder /B — smoldering /C – smolderes] fire can be easily extinguished by the fire extinguisher.

14.The chain reaction releases a lot of radiation which must bе prevented from [A — escaping /B —being escaping /C – escapes] into the atmosphere.

15.[A — smoke /B — smoking / C – smokies] in the bed is a reason of many fires.