TensofthousandsofpeoplemarchedtotheMartinLutherKingJr．M...
问题详情：TensofthousandsofpeoplemarchedtotheMartinLutherKingJr．Memorial,celebratingthe50thanniversaryofKing'sfamousspeech,throughwhichweknow_____hesaidmeanttotheblack．A．thatwhat B．w...