Для решения данного задания необходимо выбрать определение слова "flood".
Внимательно прочитаем предложенные варианты.
- It's a large amount of water covering an area that is usually dry.
- It's an extremely large wave in the sea caused, for example, by an earthquake.
- It's a violent storm with very strong winds.
- I's a violent tropical storm in which strong winds move in a circle.
Наиболее подходящим определением является первый вариант.
Ответ: It's a large amount of water covering an area that is usually dry.