Relacionar Columnas InventionsVersión en línea Based on the unit 7 Good Idea! of the book Our world 4! por Claudia Casanova 1 Electricity 2 Battery 3 A solution 4 A problem 5 Invention 6 Creativity 7 Fail 8 Try 9 A Wheel 10 Invent 11 Imagination 12 Useful 13 Succed 14 Idea