Учеба и наука

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.

февраль 8, 2017 г.

Сообщить о нарушении

Всего ответов: 2

Olga

26-й в Учебе и науке

5.0 27 отзывов

1- should, 2-can, 3-модального глагола нет, есть эквивалент were not able to, 4- must

февраль 8, 2017 г.

Дима

18-й в Учебе и науке

4.6 9 отзывов

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.

февраль 9, 2017 г.

Похожие вопросы

Закрыт

vip

1500 i