选择合适的句子补全对话。 Grandma: There was no park in my old town

选择合适的句子补全对话。

Grandma: There was no park in my old town

Meimei: Oh, ________

Grandma: Yes, I could. I always saw the moon then.

Meimei: Tell me about your school, please________

Grandma: There was no gym in my school fifty years ago. ________

Meimei: ________

Grandma: Ah?________

Meimei: It's easy. Haha...It's a secret.