The world always makes way for the dreamer. When I was twelve years old, my father took me to see Zig Zigler. I remember sitting in that dark hall listening to Mr. Zigler 1 everyone’s spirits up to the ceiling, I 2 there feeling like I could do anything. When we got to the car, I turned to my father and said, “Dad, I want to 3 people feel like that.” My father asked me 4 I meant. “I want to be a motivational (激励人的)speaker just like Mr. Zigler,” I replied.A 5 was born. Recently, I began seeking my dream of motivating others. 6从美国历史的发展进程来看,林肯总统的最大贡献是( )A. 取消黑奴制 B. 维护国家统一C. 实现领土扩张 D. 解决种族歧视问题