题目内容：

阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Born in 1930, Yuan Longping1.(graduate) from Southwest Agricultural College in 1953. Since then, finding ways to grow more rice has been his life goal. In 1973, he became the first agricultural pioneer in the world2.grew rice with a high output. This special strain of rice makes it possible to produce 20% more of the crop in the same fields. Now more than 60% of the rice3.(produce) in China each year is from this hybrid strain.