简答题：Directions: Read the following paragragh carefully. Cross o

Directions: Read the following paragragh carefully. Cross out two sentences that do not help to develop the controlling idea.
Philip Randolph, the great African-American champion of labour and civil rights, ledconfrontations with three very popular presidents. Mr. Randolph called for a march on Washington by thousands of African-Americans on July 1,1941, if President Roosevelt would not take action to end discrimination in defense industries during World War II. Mr. Randolphwas born in Florida. After much delay, the president met with Randolph, and one week later opened many defense jobs to black workers. A few years later, in 1948, Mr. Randolphthreatened mass civil disobedience if President Truman did not end segregation against African-Americans in the military. On July 26, Truman approved the order that integrated the armed services. The last confrontation was with John F. Kennedy, who sought to stop the1963 civil rights march on Washington. The march featured the Reverend Martin Luther King'sun for gettable "1 Have a Dream" speech.