听下面一段材料，回答第1至4题。 1. What does the speaker advise people to get or borrow? A. A pig. B. A dog. C. A cat. 2. What is the second 'do' about? A. Trying to eat in a public dining hall. B. Talking actively to the strangers. C. Taking dirty clothes to a public washing shop. 3. Who should a man ask for help if he loses his way according to the speaker? A. A child. B. Another man. C. A woman. 4. What advice is given in the talk? A. Never make an appointment at night. B. Never be late for an appointment. C. Never talk loudly in public places.