- We will have shows about the festivals around the world at the school hall.A. OK.

问题补充：

--- We will have shows about the festivals around the world at the school hall.

---

A. OK.

B. Of course.

C. Good. Have a nice day!

D. I see.

答案：

A. OK.

B. Of course.

C. Good. Have a nice day!

D. I see.

解析：考查情景交际。句意：我们将在学校大厅展示世界各地的节日的表演。真不错，祝你有愉快的一天。根据上文提到要有一个表演，故说玩得愉快，所以选C项。