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1.People usually invent things to make life easier.Household appliances,such as the vacuum cleaner,…………housework (REVOLUTIONIZE)
2.Most inventions develop from earlier ideas.For example,Albert Einstein………… anything,but made major scientific discoveries that led to countless inventions,such us nuclear energe, lasers and microchips(NOT INVENT)
3.Sometimes a new invention is an improvement on an old one,such as the vacuum cleaner.But some inventions………….by accident(MAKE)
4.Teflon, the non-stick coating used on saucepans,……………..the result of a mistake made by its inventor,scientist Roy Plunkett(BE) — Правильный ответ на вопрос найдете ниже