听对话,回答问题。 1. When did the girl come back home? A. On Saturday. B. On Friday. C. On Wednesday. 2. What's the dialogue mainly about? A. The girl's vacation. B. The girl's parents. C. The girl's interest. 3. What can you infer from the dialogue? A. The boy liked staying at home. B. The girl liked the boat tour most. C. The girl's parents liked paintings.