Completar frases Our World 4 - Unit 7 Good ideaVersión en línea Used to/didn't use to por Sonia Martinez 1 Creativity solve help our have could are across to way used solve can boats Inventions get Creativity ! Electricity ! changes the world ! Inventions problems . Problems that we have are gone ! The wheel and the cell phone help to make world go around ! Inventions useful , every day , in every . Computers , cars , and airplanes to make our world go around . CHORUS You used to to walk to get from place to place . Years ago , you only talk face to face . You could take only to across the sea . Now , we fly the sky . are the reason why . CHORUS Imagination and ideas change the world , every day . Can you a problem ? Can you help our world today ? CHORUS