从方框中选择适当的句子补全对话。

A. How about you? B. No problem. C. What can you do for the party, children? D. Can you do any kung fu? E. Thank you.

Mrs. Brown: We'll have a party next Wednesday.

Danny: I can dance for the party.

Mrs. Brown: Wonderful!

Jenny: I can play the pipa. 

Mrs. Brown: OK.

John: No, I can't.

Mrs. Brown: I can help you.

John: