一、语法填空
Haydn, ___________ (know) as “the father of symphony”, was the son of a peasant. He had a beautiful ________(sing) voice. He ________(change) the symphony into a long piece for a large orchestra. After _________ (study) music in Vienna, Haydn went to work at the court of a prince in eastern Austria, where he became director of music.________________(work) there for 30 years, Haydon moved to London, _________ he was very successful