请阅读下面短文，根据其内容，用方框中所给单词的适当形式填空。(每个单词限用一次)
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Li Wen is a 16-year-old boy. He works hard and ____ well in school. It is hard to believe that he used to have much ____ in school. His parents moved to the city to look for jobs. ____ they couldn't be at home to 1ook ____ him. From then on. he became less interested in ____to school and missed classes. Then his parents made a ____ to send him to a boarding school. He was shy and had no friends. Life there was difficult for him. One day he told his teacher he wanted to____ the school. His teacher called his parents md advised them to come back and talk with their son in person. Then his parents came back and had a talk with him. This ____changed his life. He realized that his parents would always love him and they would be ____ of everything good that he did. Now he is much____ and more outgoing than he used to be.
