Задание

Прочитай приведённые ниже тексты. Преобразуй, если необходимо, слова, напечатанные заглавными буквами в скобках, обозначенных номерами 19–24, так, чтобы они грамматически соответствовали содержанию текстов. Заполни пропуски полученными словами. Каждый пропуск соответствует отдельному заданию из группы 19–24.

Birds' singing

Male birds sing more often than females. 19.___________(THEY) songs usually convey one of two messages: "I'm here, so go away" if the listener is another male, or "I'm here and healthy, come mate with me" if it's a female. Birdsong is most intense in spring when male birds compete over 20.___________(TERRITORY) and partners.

Victims of wind turbine blades

As wind energy 21.___________(GROW) in popularity in recent years, reports of birds killed in collisions with moving turbine blades have become more common. Few studies have investigated the phenomenon, and estimates suggest that between 10,000 and 100,000 birds 22.___________(KILL) by turbine blade strikes annually in the UK. That's a lot, but it's worth noting that domestic cats kill approximately 55 million birds in the UK each year. Nevertheless, the research 23.___________(SUGGEST) there may be ways to make wind turbines safer for wildlife. For example, it was reported that in Norway some scientists 24.___________(CONDUCT) the experiment of painting one blade black. This had reduced bird deaths by 70 per cent.

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