问题
补全对话，情景问答
| 选择正确的答案，补全对话，将其序号填在横线上。 |
| A. One hundred. B. Yes, they are. C. No, they aren't. |
1. | —How many books are there? — |
2. | —Are they donkeys? — |
3. | —Are they elephants? — |
答案
1. A 2. C 3. B