阅读对话，从对话后所给五个选项中选出可以填入空白处的最佳选项。
A: Hi, Zhang Hua. Will you go to the cinema with me this evening?
B:     1    . It's Mid-Autumn Festival today.
A: Mid-Autumn Festival?
B: Yes.     2     Families see it as a time to get together and usually celebrate it with a big family meal.     3    .
A: We don't have this festival in England.     4    .
B: They're round, in the shape of a full moon. You can come over to my home and try them this evening.
A: Really?     5    .
A. I'm sorry, I can't.
B. Thank you for your invitation.
C. What do moon-cakes look like?
D. We have some moon-cakes that day.
E. It's a traditional festival in China.
F.They're round