阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

    He was born in Atlanta, Georgia, on January 15, 1929. He was a black man. He lived for only 39 years. He(grow) up insoutheastern part of the United States. He studied at Morehouse Collegehe met many outstanding men whose ideas he found(be) important and(excite) . There he read the(writing) of Thoreau, and he learnt many ideas about freedom. Many years later in Washington, D.C, he spoke tocrowd of 250,000 people. He told(they), "I have a dream." That speech is still famous now. His work was not(finish) when he diedApril 4,1968. Who is he? He is Martin Luther King.