用适当的词语或句子补全对话。

A: Hi, Bob. Tomorrow is my birthday. I will have a party.？

B: Sure, I'd love to .Thank you for your asking. Who else did you invite?

A: Tom and Ann.

B:？

A:John? Oh, yes, I did. But he can't come.

B: Oh?

A: Yes. He has to prepare for an exam. He still has too much to learn.

B:. He is funny. If he could come, we would have a

good time.

A: Yes, a little pity (遗憾) .

B:？

A: We can sing, dance, watch a video and play games.

B: ？

A: At seven in the evening.

B: I think we will have fun.

A: Sure, we will .See you then.

B: See you.