⑴Open it and see! A. 黑色的那个是只鸟。
⑵Let's have a race. B. 你能和我一起数吗?
⑶Can you count with me? C. 打开看看!
⑷I have fifteen books. D. 咱们比赛吧。
⑸The black one is a bird. E. 我有15本书。