阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项。
Learning experiences happen to us throughout our lives. Not long ago, I had one that I would like to 36 .
I was going to Marblehead with my sailboat team. The team was racing down the highway at 85 mph 37 we realized we were 38 . Luckily, we saw a rest area ahead. I had a brand new $20 bill. I was so 39 because I had never had that kind of cash before. But spending it on 40 seemed like throwing it away. We all rushed into the pizza line. 41 I got a pizza and a drink, and walked to my table. About halfway through the meal, I 42 I had not actually handed any money to the cashier. I had just 43 out, and nobody had noticed. I felt terrible.
My conscience（良心） opened its mouth and swallowed me in one big bite. I couldn’t 44 over it. I just couldn’t go back to the cashier and 45 for my stolen pizza. I was so upset that I 46 to give myself the pleasure of an ice cream in 57 that someone would say,“ Hey, Jeff, why don’t you use the change 48 the pizza instead of that nice, new $20 bill?” I was not so 49___ of my cash now.
For the next two years, whenever I was 50 of the “pizza incident”, I would say to myself, “Don’t think about it....”
I have learned two things from this 51 .Maybe I was a fool for 52 in to my conscience, and being too stupid to appreciate a 53 pizza. But the real lesson is that even if you get away from what you have done, your conscience will 54 up with you.
This reflects the saying, “A coward（懦夫） dies a thousand deaths; a hero dies once.” I was a coward and have felt terrible about that incident at least a thousand times. If I had been a “ 55 ” and gone back to pay for the pizza, I would have felt a little uncomfortable about it only once, or maybe twice.
A. say B. talk C. share D. explain
A. as B. while C. then D. when
A. lost B. tired C. hungry D. anxious
A. excited B. eager C. satisfied D. encouraged
A. rest B. food C. travel D. drink
A. Luckily B. Finally C. Immediately D. Actually
A. thought B. recognized C. noticed D. realized
A. walked B. left C. worked D. found
A. look B. get C. turn D. think
A. ask B. pay C. apologize D. send
A. refused B. wanted C. hoped D. meant
A. hope B. surprise C. anger D. fear
A. into B. with C. for D. from
A. sure B. upset C. proud D. pleased
A. warned B. reminded C. thought D. told
A. experience B. experiment C. story D. mistake
A. turning B. taking C. handing D. giving
A. free B. cheap C. plain D. delicious
A. make B. wake C. catch D. put
A. coward B. fool C. loser D. hero