综合填空
阅读下面的短文，根据每个空格中所给的词首字母填入适当的词，使短文意思完整。
On Easter, April 9th in 1939, more than 75,000 people came to the Lincoln Memorial（林肯纪念馆）in Washington, D.C. They heard the famous African-American singer Marian Anderson g 1 a free open-air concert.
Anderson had planned to sing at Washington’s Constitution Hall（华盛顿宪法大厅）, but a political organization that helped manage the concert hall refused her the right to perform because she was b 2 . With the help o 3 the first lady Eleanor Roosevelt, Anderson’s performance at the Lincoln Memorial m 79 people greatly aware（意识到）of the p 4
5 of racial discrimination（种族歧视）in America.
Anderson had tired hard out of a p 6 childhood in South Philadelphia to become a world f 7 singer. Even after her great appearance at he Lincoln Memorial in 1939, it was not u 8 1955 that she became the first African-American to be i 9 to perform at New York’s Metropolitan Opera House（纽约大都会歌剧院）Anderson died in Portland, Oregon, o 10 April 8, 1993.