听下面一段材料,回答以下小题。
17. Why does the speaker organize the activity?
A.To prepare for Children’s Day. |
B.To celebrate the end of the school year. |
C.To welcome children in the neighborhood. |
18. What is the activity for children about?
A.Looking for the hidden gifts. | B.Hiding around the center. | C.Having a group discussion. |
19. What are the children required to do before going out?
A.Find the flags. | B.Write their names down. | C.Stay together with their parents. |
20. Who will go to the other side of the center?
A.The preschool children. | B.The third-grade children. | C.The fourth-grade children. |