After learning the listening skills of this unit, listen to the passage and complete the chart below.掌握本单元的听力技巧后,听以下篇章并填空。 How the Hills Family Won the Copyright to the Song “ Happy Birthday to You ” Time Event In 1 Mildred and Patty Hill, two American 2 , composed the song “Good Morning to All” to greet their 3 every morning. Later The 4 of the song was known as “ 5 Morning to You” when it was used for 6 to sing to their 7 . In 8 The song appeared in a 9 edited by Robert Coleman. And a second verse “Happy Birthday to You” was 10 to it. It is unclear who 11 the lyrics to the second verse. By Mid- 12 The song 13 repeatedly in 14 , radio shows, and Broadway musicals without the 15 of the Hill family. In 1934 Jessica Hill decided to act 16 her elder sisters and filed a suit. She 17 in court that “Happy Birthday to You” was actually their song with 18 . From then on Every time the song is sung 19 , the Hill family gets 20 .