听下面一段对话,回答1 至3小题. |
1. What did Mary want to give back to Fred? |
A. His keys. B. His glasses. C. His jackets. |
2. What did Fred do with his group? |
A. They did experiments. B. They cleaned the street. C. They did some shopping. |
3. How many times has Yantai been one of the best civilized cities of China? |
A. Once. B. Twice. C. Three times. |