John Smith was a writer, who wrote detective stories for magazines , though he never dealt with criminals . One evening he could not finish an end for a story. He sat in his study , but he had no ideas. So he decided to go to the cinema. When he came back, he found that he had had a visitor. Someone had broken into his house. The visitor had had a drink, smoked several of his cigarettes and had read his story. The visitor left him a note. "I have read your story and I don't think it is very good. Please read my suggestions and you can finish it. By the way, I am a thief. I'm not going to steal anything tonight. But if you become a successful writer, I will return." John read the thief's suggestions. Then he sat down and wrote the rest of the story. He is still not a successful writer, and he is waiting for his "visitor" to return. Before he goes out in the evening, he always leaves a half-finished story in his study. John went to the cinema because  _  .
he was too tired he wanted to look for a thief he could not finish his story and hoped to get some ideas he wanted to enjoy himself in the cinema