从方框中选择合适的句子完成对话，使对话完整并正确。
A: Hey, Robert! Wait a minute.
B: What’s the matter, John?
A: ________
B: Of course I can. What can I do for you?
A: ________
B: Your birthday is next Saturday. We have more than a week to get ready for your party.
A: Yes, you are right. I want to write some invitation cards today.
B: That’s great. ___________
A: My handwriting is bad, so I want you to write them for me.
B: OK. ________You should practice writing to improve (提高) your handwriting.
A: Thank you very much. I’ll do my best.

A. Some friends in our class. B. I’ll get to your house at about eight. C. Can you come to my house and help me?    D. When is your birthday? E. I want to have a birthday party. F. How old are you? G. Who are you going to invite?