阅读下面短文，掌握其大意，然后从各题所给的四个选项中，选出最佳选项。
In 1883, a creative engineer, John Roebling, was inspired to build a splendid bridge connecting New York with Long Island. However, experts throughout the world thought that this was  16 . Even so, Roebling could not  17  the idea in his mind. After much discussion, he  18  convince his son Washington, an up-and-coming engineer, that the bridge in fact could be built. They hired their  19  and began to build their dream bridge.
Only a few months  20  the project was underway a tragic on-site accident killed John Roebling and  21  injured his son, leaving him brain-damaged and unable to move or  22 . Surely now the project would have to be  23 . Though Washington Roebling lay in his hospital bed, he was not  24  and his mind remained as  25  as it was before the accident. Suddenly an idea  26  him. All he could move was one finger, so he  27  the arm of his wife with that finger,  28  to her that he wanted her to call the engineers again. Then he used the same method of tapping her arm to tell the engineers what to do. For 13 years Washington tapped out his  29  with one finger until the bridge was  30  completed.
Perhaps this is one of the best examples of never-say-die attitude that  31  a terrible physical disability and achieves an impossible  32 . Often when we face difficulties in our daily lives, our problems seem very small  33  what many others have to face. The Brooklyn Bridge shows us that even the most  34  dream can be realized with  35  no matter what the chances are.

    It was a rainy day and I was riding on a bus downtown to go to work. I was   36   next to a man in a business suit and I paid little attention  37   we both got off at the same stop and walked to the same newsstand to get a morning   38  .  

The man running the stand was obviously having a  39   day. He was rude and unsmiling as we bought our papers, which only  40   more gloom （郁闷）to my day. The businessman   41 my gloomy feeling and smiled brightly,   42   the news stand owner for the paper and for being open on such a（n）   43   to make sure we were able to get our papers.  

As we  44 away, I asked this man why he was so   45   to the newsman when he didn't 46   his expression of thanks and friendliness. The businessman smiled at me and said, " Why would I let someone else  47   what I say and what I feel?"  

We then   48   to go to our own work places. To this day, I still don't know who that businessman was, or   49  he worked. He appeared briefly in my life and disappeared just as 50 . But I've never forgotten the words he said and his   51   which seemed like a ray of light on a gloomy day.  

That was a good 25 years   52  , but the effect this had on my life has lasted. I  53   had a chance to thank him personally, but the way I look at life has changed  54   those words. I have learnt that we cannot control people and   55   that come to us, but we can always control our response to them.