⑴one A. 几岁
⑵nine B. 什么
⑶how old C. 五(岁)
⑷what D. 一(岁)
⑸five E. 九(岁)
⑴Number off, please? A. See you.
⑵What's you number? B. Goodbye, Miss Liu.
⑶Class is over, Goodbye, class! C. One, Two, Three…
⑷See you, Miss Liu. D. Three.