题目内容：

九、情景交际：从方框中选择合适的选项补全对话。(每小题2分，共计10分)

A：What you like to come to my party，Lily?

B：71.  1. When is it?

A：At seven o'clock on Sunday evening.

B：Well，I have to study for my math test.72.2. I'm not good at math，so I need to work hard.

A：73.3.

B：Really？What is it?

A：Yes.Math is my favorite subject and I'm good at it.74.4.

B：Then I can go to your party on Sunday！That's great.Thanks!

A：75.5. See you on Saturday.

B：See you.

A．I'm going to buy a gift for you.

B．Sure，I'd love to.

C．It's on next Monday.

D．I have a good idea.

E．My English is not as good as yours.

F．I can help you with math on Saturday.

G．You're welcome.