Relacionar Columnas Passive useVersión en línea Match the uses to the examples por Janssens Joyce 1 The cave paintings of Lascaux were made in the Upper Old Stone age. 2 Mistakes were made. 3 Rules are made to be broken. 4 An experimental solar power plant will be built in the Australian desert. 5 Insulin was first discovered in 1921 by researchers at the University of Toronto. It is still a treatment available for diabetes. You want to emphasize the person or thing acted on. The actor is irrelevant. The actor is unknown. You are talking about a general truth. You want to be vague about who is responsible.