题目内容：

       ……

This election had many firsts and many stories that will be told for generations. But one that's on my mind tonight’s about a woman who cast her ballot in Atlanta. She is a lot like the millions of others who stood in line to make their voice heard in this election, except for one thing: Ann Nixon Cooper is 106 years old.

She was born just a generation past slavery; a time when there were no cars on the road or planes in the sky; when someone like her couldn't vote for two reasons, because she was a woman and because of the color of her skin.

And tonight, I think about all that she's seen throughout her century in America: the heartache and the hope; the struggle and the progress; the times we were told that we can't, and the people who pressed on with that American creed: Yes we can.

At a time when women's voices were silenced and their hopes dismissed, she lived to see them stand up and speak out and reach for the ballot. Yes we can.

When there was despair in the Dust Bowl and depression across the land, she saw a nation conquer fear itself with a New Deal, new jobs, a new sense of common purpose. Yes we can.

When the bombs fell on our harbor and tyranny threatened the world, she was there to witness a generation rise to greatness and a democracy was saved. Yes we can.

She was there for the buses in Montgomery, the hoses in Birmingham, a bridge in Selma, and a preacher from Atlanta who told a people that "we shall overcome." Yes we can.

A man touched down on the moon, a wall came down in Berlin, a world was connected by our own science and imagination. And this year, in this election, she touched her finger to a screen, and cast her vote, because after 106 years in America, through the best of times and the darkest of hours, she knows how America can change. Yes we can.

America, we have come so far. We have seen so much. But there’s so much more to do. So tonight, let us ask ourselves, if our children should live to see the next century; if my daughters should be so lucky to live as long as Ann Nixon Cooper, what change will they see? What progress will we have made? 

(From Obama’s victory speech, 2008 )

56. What can be inferred from the passage?

A. Ann Nixon Cooper was once a slave.              B. Ann Nixon Cooper is a black woman.

C. Ann Nixon Cooper knows Obama and his family very well.

D. Ann Nixon Cooper contributed much to the changes of America.

57. What does the underlined part“cast her ballot”in the first paragraph probably mean?

A. expressed her happiness                                B. worked for Obama

C. voted in the election                                     D. celebrated the victory

58. What message does this part of Obama’s speech mainly send?

A. Ann Nixon Cooper has experienced the best time and the darkest hours of America in the last century.

B. America has undergone great development in the last century and is looking forward to more great changes.

C. Ann Nixon Cooper has witnessed the development and democracy of America.

D. This election had many firsts and many stories that will be told for generations.