A: Would you like to have dinner with me this evening, Eric?
B: 【小题1】 Maybe another time.
A: What are you doing?
B: I'm making a plan. 【小题2】
A: What plan? Is it very important?
B: Yes. I always do volunteer work on the first Saturday of every month.
A: 【小题3】
B: I help out at the children's hospital. I help to plan some activities.
A: 【小题4】
B: Of course. You could help to make the sick children happy.
A: 【小题5】 I can tell them some interesting stories.

A．Err... could I join you?

B．When do you want to do volunteer work?

C．What kind of volunteer work do you do?

D．Sorry, I can't. I'm busy today.

E．Could you come and help me?

F．Oh, I'd love to do that.

G．I must finish it on time.