补全对话
（D="Darren," C= Carol）
D: Hi, Caro!  
C: Oh, hi, Darren. I’m just getting ready for the Red Nose Day concert tomorrow.
D: Oh really? Well, I’m free this afternoon. 
C:Actually, I’ve nearly finished. Jim and I are going to put up some ads later, though. Could you please help us with that?
D: 
C: That’s wonderful! Oh, there’s one more thing. Would you mind coming early tomorrow to help sell tickets at the door?
D: Not at all,
C: Around six would be great.
D: OK. 
C: Great. Thanks, Darren.

A．No problem.

B．See you then.

C．Of course not.

D．What are you doing?

E.Can I give you a hand?
F.What time shall I be there?
G.Have you finished your homework?