听下面一段材料,回答第1至3题. 1. Who is in charge of the listeners' social activities? A. Emma Watson. B. Jack Brown. C. John Brone. 2. What are the listeners going to do on Wednesday? A. See a film. B. Take sports. C. Go sightseeing. 3. What is the purpose of the man's speech? A. To welcome the listeners to the center. B. To tell the listeners the rules to be followed. C. To inform the listeners of the arrangements.