你会买东西吗？补全短文。(16分)
A：__（1）__I  help you?
B：__（2）__， please. I'd like a cake.
A：What__（3）__would you like?
B：I'd like that  round__（4）__．

A．shape	B．Can
C．one	D．Yes

（1）________ （2）________ （3）________  （4）________