（2013·山东卷)第二节：完形填空（共20小题；每小题1分，满分20分）
阅读下面短文，从短文后所给各题的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡将该项涂黑。
I used to be a very self-centered person, but in the past two years I have really changed. I have started to think about other people____I think about myself. I am happy that I am becoming a____person.
I think my ____started when I was at Palomar College. At first, I just wanted to get my____and be left alone. I thought I was smarter than everyone else, so I hardly ever____ to anyone in my classes. By the end of my first semester, I was really____. It seemed as if everyone but me had made friends and was having fun. So tried a(n)  ____. I started asking people around me how they were doing, and if they were having trouble I____ to help. That was really a big____for me. By the end of the year, I had several new friends, and two of____are still my best friends today. 
A bigger cause of my new____, however, came when I took a part-time job at a Vista Nursing Home. One old lady there who had Alzheimer’s disease became my____ . Every time I came into her room, she was so ____  because she thought I was her daughter. Her real daughter never____her, so I took her place. She let me ____that making others feel good made me feel good, too. When she died, I was____, but I was very grateful to her.
I think I am a much____ person today than I used to be, and I hope I will not____ these experiences. They have ____ me to care about other people more than about myself. I ____who I am today, and I could not say that a few years ago.

A．since B．before C．or D．unless

A．famous B．simple C．different D．skilled

A．education B．career C．tour D．change

A．balance B．homework C．degree D．interest

A．talked B．wrote C．lied D．reported

A．careful B．lonely C．curious D．guilty

A．argument B．game C．experiment D．defence

A．dared B．offered C．hesitated D．happened

A．dream B．problem C．duty D．step

A．us B．which C．them D．whom

A．attitude B．hobby C．hope D．luck

A．friend B．partner C．guide D．guest

A．polite B．happy C．strange D．confident

A．bothered B．answered C．visited D．trusted

A．explain B．guess C．declare D．see

A．homeless B．heartbroken C．bad-tempered D．hopeless

A．quieter B．busier C．better D．richer

A．forget B．face C．improve D．analyze

A．forced B．preferred C．ordered D．taught

A．miss B．like C．wonder D．expect