补全对话

A. Can I try a piece now? B. Would you like some? C. The cake looks very nice. D. Do you like cakes? E. Shall I go to her party? F. How soon will Rita come back from work? G. What's that on top?

A：Hey, Mum!

B：Thank you.

A：

B：That's cheese.

A：Mm, the cake must be delicious.

B：Sorry, you can't. It's for your sister Rita's birthday. You have to wait for her and then we eat it together.

A：

B：In an hour.

A：I see. But now I'm really hungry.

B：Here are some chicken hamburgers.

A：Yes, please. Get one for me.