a) 1 The reactor is fast becoming a major source of heat and electricity. Реактор быстро становится главным источником тепла и электричества. IS BECOMING-Present Continuous Active 2Scientists have found ways of measuring the sizes and bodies in the Universe. Учёные нашли способы измерения размеров и тел во Вселенной. HAVE FOUND-Present Perfect Active б) 1Elements are transformed into other elements both by men and by nature.-Элементы трансформируются в другие элементы и человеком и природой. ARE TRANSFORMED-Present Indefinite Passive 2The launching of Sputnik1 was followed by many achievements in science and engineering. За запуском Спутника 1 последовало много достижений в науке и технике. WAS FOLLOWED-Past Indefinite Passive