根据对话内容从方框中选出能填入空白处的最佳选项补全对话。

A: Hi, Tina. Would you like to come to my birthday party?

B: When is it?

A: This Friday evening, at my house.

B: Sorry, I'm afraid I can't go.

A: Why (为什么)?

B:

A: Oh, that's so bad.

B: Have a good time, Lily. Look!

A: Wow, a scarf. I like it.

B: You're welcome.

A. Thank you very much, Tina. B. Thanks. I'd like to go. C. Because I have ataijiquanclass this Friday evening. D. This Friday evening? E. Oh, I have a present for you.