根据对话内容，从下面方框中选出恰当的句子补全对话。

A. What are you doing? B. May I speak to Lucy? C. Yes, I'd love to. D. Oh, I'm afraid I can't. E. You are really good at cooking.

A: Hello! This is Sam.

B: This is Lucy speaking.

A: Lucy, shall we go for a walk along the beach?

B:  I'm busy now.

A:

B: I am making apple pies.

A: Sounds nice!

B: Thank you. The pies will be ready in 20 minutes. Would you like to try some?

A:  Apple pies are my favourite, you know, I can't wait to eat them!

B: Come now! It will be the right time when you arrive.

A: Great! See you soon!

B: See you!