阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
Tuan was a farmer in Vietnam. For decades, he had been struggling to rid his family of hunger.However, it always confused him    to expand the output of his crops. This     job.
One day, when skimming through a newspaper, Tuan read     comment on Yuan Longping. He underlined Yuan’s nationality and occupation, and then   (focus) on his discovery and the statistics of his research. He found the knowledge Yuan circulated very      (practice). Therefore, he made a summary and began to build up a new farming method. He planted super grain of rich nutrition and equipped    (he) to keep his crop roots free of bacteria and pests. He also enriched minerals in the soil while    (reduce) chemical fertilizers. Though it cost him more time and freedom, he was full of hope.
The next year, Tuan was sunburnt    satisfied with his production very much. Thanks to YuanLongping, he not only won the battle    hunger, but he could also export his crops abroad.