缺词填空 根据短文内容和首字母提示，补全空格内的单词，使短文完整，通顺。

    I am Jackie Lee, an American Chinese. Let me tell you about my grandfather's life story.

    My grandfather was b____ in 1932 and grew up in a poor village in Fujian, China. At the age of 14, he first heard of America. It was said to be the land of gold and poor people could easily become r____ there.

    So, my grandfather came to America. “I thought it was easy to m____ money in America,” he told me, “But when I a____ in Los Angeles, I realized it was not true. I couldn't find a good job because I spoke little English. I wanted to go to a language school to learn English, b____ I couldn't pay for it. Later, I worked in a small r____, serving the guests, cleaning up the tables, washing the dishes and sweeping the floors. I was s____ a helpful and honest worker that my boss（老板）was happy with me. I was popular with my workmates, t____. Life became easier and in the end I entered an evening school to learn English.”

    My grandfather kept working hard, and finally made h____ dream come true. Things do not come easily in life. That is what I have learned f____ my grandfather.

水污染防治应当坚持预防为主，防治结合、综合治理的原则，优先保护饮用水源，严格控制各种污染物进入河流湖泊．（判断对错）

1947年，美国总统杜鲁门在国会发表演说，宣称美国是世界头号强国，能够在世界各地“承担义务”，援助“自由”国家，遏制共产主义的“扩张”。在此背景下，美国采取的措施有（  ）

①召开雅尔塔会议       ②对苏联展开全面冷战                 ③实施马遏尔计划                   ④建立北大西洋公约组织