完形填空

　　It was a cold winter morning．Half asleep at the train station, I stared into the distance, 　　1　　 for the train to take me to my 　　2　　 in Boston．The world was quiet．The very few people were in the street bar, 　　3　　 their coffee and chatting．．

　　Reaching into my pocket as the 　　4　　 was approaching, my numb hand searched for the ＄20 bill to pay my fare．The pocket was 　　5　　!I searched through my bag and then I felt 　　6　　．Unless the money dropped from the sky, I'd be 　　7　　 there．

　　“What's the matter?” A short, elderly man stood before me．

　　“Oh, nothing…Well, I 　　8　　 my money and now I can't pay for the ticket．I'm going to 　　9　　 my math class and the train is leaving．”

　　“Here, use this．”

　　The man held a ＄20 bill．I looked up, 　　10　　．People just didn't do that any more．Everyone worried about their own 　　11　　, rarely stopping to think about others, especially teenage strangers．

　　“Thank you, but no, I can't．”

　　“　　12　　 it－go!” The man pushed me 　　13　　 the train．I bought a round-trip ticket, and he refused the change I 　　14　　 to give him back．I did not know what to say－a million thoughts raced through my mind, yet I stood 　　15　　．

　　For the train ride I was silent．I began to see the world through 　　16　　 eyes．That man made a difference with such a simple 　　17　　．

　　A week later I was at the train station again, with an extra＄20 　　18　　 I saw the man．And there he was．

　　“Excuse me, sir, I believe I owe you this．” I 　　19　　 the money into his hand．

　　Failing to refuse, he said, “Just remember to do the same for someone in your shoes some day．” I smiled, 　　20　　．

　　The elderly man is my hero．For many, heroes are famous, but my hero is a giving stranger who taught me a lesson in life．I will never forget his kindness．