person sing lead fame industry Maria Callas was one of the best-known opera singers in the world, who became famous internationally for her beautiful voice and intense【71】______ during the 1950s, and the recordings of her singing the well-known operas remain very popular today. Maria Callas was born in New York City in 1923 and her real name was Maria Kalogeropoulous. Her parents were Greek and when she was fourteen, she and her mother returned to Greece, where Maria studied singing at the national conservatory in Athens and the well-known opera【72】______Elvira de Hidalgo chose Maria as her student. In 1941, when she was 17, Maria Callas was paid to sing in a major opera for the first time. She sang the【73】______ role in several operas in Athens during the next three years. In 1943, Callas was invited to perform. in Italy, which was the real beginning of her profession as an opera singer. She performed major parts in several of the most【74】______operas. In 1949, she married an Italian【75】______, Giovanni Battista Meneghini, who was twenty years older and became her adviser and manager. (36)