在高中英语学习过程中，完形填空是一项重要的综合能力测试，它不仅考察学生的词汇量和语法知识，还考查了逻辑推理能力和语感。为了帮助同学们更好地掌握这一题型，下面提供一组精心设计的完形填空练习题。
阅读下面短文，从每道题所给的A、B、C、D四个选项中选出最佳答案填入空白处，使文章通顺完整。
短文：
Once upon a time, there was a small village surrounded by lush green forests. The villagers lived in harmony with nature, respecting the trees and animals that were their neighbors. One day, an old man arrived at the village carrying a heavy sack over his shoulder. He asked for shelter and food from the villagers, promising to teach them something valuable in return.
The villagers welcomed him warmly and provided him with everything he needed. After several days, the old man gathered all the villagers under the big oak tree at the center of the village square. "Today," he began, "I will share with you a secret that has been passed down through generations." His voice was calm but carried a sense of authority.
He paused briefly before continuing. "The key to happiness lies not in what you have, ___1___ in how you treat others." The villagers listened intently, some nodding thoughtfully while others exchanged puzzled glances.
The old man continued, "When you show kindness and respect towards others, no matter how insignificant they may seem, you create a chain reaction of goodwill that spreads far beyond your imagination."
After sharing his wisdom, the old man bid farewell to the villagers and disappeared into the forest as mysteriously as he had come. From that day on, the villagers made it a point to practice the lesson they learned. They treated each other with greater care and concern, and soon, their once quiet village became known for its warmth and friendliness.
Years later, when travelers passed through the village, they would often remark about the unusual atmosphere of peace and contentment they felt. It was said that this feeling came from the villagers' simple yet profound understanding of the true meaning of happiness.
题目：
1. The word that best fits the blank is:
A) nor
B) but
C) so
D) because
以上就是本次的完形填空练习题。通过这样的练习，希望同学们能够提升自己的阅读理解能力和语言运用技巧。如果觉得有帮助，不妨多做一些类似的练习来巩固所学知识哦！
