根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。

A: Good evening, Helen.

B: Good evening, Jack. Nice to see you.

A: Excuse me, what time does the party begin?

B: At seven o'clock.

A:

B: It's six o'clock.

A: Do you want to sing English songs?

B:

A: What else can you do?

B: Look at my guitar. Is it beautiful?

A: It's very beautiful. You are so smart.

B: Thank you. Come on.

A: OK. Let's go.