Uzupelnij zdania poprawnymi formami strony biernej, tak aby zachować znaczenie zdania wyjściowego. 1 Isaac Newton discovered gravity. Gravity by Isaac Newton 1 Millions of people visit this website every day. This website by millions of people every day. 2 They didn't deliver my new speakers yesterday. My new speakers yesterday 3 We don't use these devices very often, These devices very often