51.  It was really exhausting as we had to explain to them again and again.

52.  One year ago, we were both freshmen here in Nanjing University and both of us had attended the Students' Union.

53.  I had stereotype on people from Shanghai, because I was once asked to pay $5 when I asked for directions.

54.  This had made me feel uncomfortable.

55.  However, this had convinced me that people from Shanghai are parsimonious.

56.  He told me that he actually lost his wallet on the way to the restaurant but he had not noticed until the end of the dinner.

57.  I gradually found that Marco was much superior to what I had imagined.

58.  When other students had not got adequate time to finish the task, he was always the first initiative to help.

59.  Congratulations- You are quite lucky as your friend remembers your birthday and sends you the cake-" When she finished her word, I was just shocked and didn't know how to respond since I had never expected the dormitory supervisor would say such a thing to me and my stereotype of her took a thorough pasting at that moment.

60.  That means I have found that I used had some stereotype about people, matters on campus.