найти модальные глаголы. Подчеркните их. - вопрос №2322653

1. Firefighters should know that the increased air supply may intensify the fire. 2. Fire drills can help firefighters evacuate people from buildings when a fire or other emergencies occur.
3. Firefighters were not able to get to the fire seat quickly because of the collapsed roof of the building.
4. For ordinary combustible materials the oxygen level must be reduced to 4 or 5 percent for complete fire extinguishment.

Ответы

1- should, 2-can, 3-модального глагола нет, есть эквивалент were not able to, 4- must
08.02.17
1. Firefighters should know that the increased air supply may intensify the fire.2. Fire drills can help firefighters evacuate people from buildings when a fire or other emergencies occur.
3. Firefighters were not able to get to the fire seat quickly because of the collapsed roof of the building.
4. For ordinary combustible materials the oxygen level must be reduced to 4 or 5 percent for complete fire extinguishment.
09.02.17

Еva

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Анастасия Ильинична

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Жанна

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