阅读下面短文，在空白处按要求填入适当的单词或括号内单词的正确形式。每空1个单词。

    David Smith is a student, and one of his(hobby) is writing. During the summer of 2010, he(spend) four weeks at a summer camp. As well as the usual activities, there was a writing(class). "The teacher was a writer, and she asked us to(talk) about our lives and tell interesting stories. Then she encouraged(we)to write about our experiences at the camp. "

    Back at school, David wrote a story about(冠词) life of a sixteen-year-old boy, and(successful) it came out as a book in 2012. Many young people love his book, and(介词) a result, David has become a popular young writer.

    Writing has brought David pleasure and success,(连词) it is not his only hobby. He is also interested in many other things. "I like(play) volleyball too, " says David.