Answer :
ACTUALLY YOU HAVE MANY CHOICES.... HOWEVER YOU SHOULD GIVE A SPEECH ON SOMEONE RELATED TO FREEDOM CUZ INDEPENDENCE DAY IS NEAR .. SO I THINK THEN THERE ARE MANY CHOICES... BUT DONT CHOOSE MAHATMA GANDHI BHAGAT SINGH AND SO ON CUZ THEY R VERY COMMON... CHOOSE ANYONE WHO WAS INDIRECTLY TAKING PART IN FREEDOM BY POEMS PAINTINGS STORY AND ALL LIKE RABINDRANATH TAGORE OR SOMEONE LIKE HIM... HOPE I HELPED