Please select one of the options to complete the gaps. (Пожалуйста, выберите один из вариантов, чтобы заполнить пробелы.) 1. Currently, Canada ___ a high-speed rail system. * does not have is not having has not have do not have 2. By the 17th century, temperatures in the Northern Hemisphere ___ by half a degree Celsius compared to medieval times. * fell had fallen was falling has fallen 3. Recently, a scientist at the University of Illinois ___ a small device that can measure a wearer"s blood flow and transmit that information to a computer wirelessly. * invented has invented inventing have invented
Зимний_Ветер
выдумал изобрел 4. The United Nations ___ formed in 1945 to promote international cooperation and prevent future conflicts. * was were is have been
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