You may know the song Happy Birthday very well, but do you know about its writer? It___小题1:________(write) by an American girl. And she has become a very rich woman. When she was a child , she was poor. Once she was invited to her friends’ birthday party. She had no money_____小题2:_____( buy) presents for them. She was sad. Her mother said “小题3:__(not worry). How about ___小题4:____(sing) a song together? Happy birthday to…” She decided to write it down and ____小题5:_(sing) it to her friends at the party. They sang and sang “We_____小题6:___(not hear) such a song before.” The party ended up singing a song. Later the girl became well known in America.