(B)填入一个适当的词补全对话，每空一词。

A: Hi, Mary. We're going to have our graduation (毕业) party. you decided what to do yet?

B: No, but we need to record the happiest time. 

A: I agree. I'll bring my camera here.

B: Do you think writing some words to each other is a wonderful idea? 

A: Yes, I think . 

B: Why  invite our teachers to the party? 

A: Good idea. I can't wait.

B: Let's get ready for it together.

A: When and  shall we meet?

B: Let's meet in our classroom at 9:00 a. m. tomorrow.

A: All . See you!