听下面一段对话,回答第1-3题。 1. Why is the man going to Shanghai? A. On business. B. To get married. C. To attend a wedding. 2. How old is the man now? A. 27. B. 28. C. 30. 3. What can we learn about the man from the dialogue? A. He hates his job very much. B. He often travels for business. C. He is looking for a new job at present.