原文： Is that all?

A:I want some envelopes ,please?

B:Do you want the large size or small size?

A:The large size , please.

B:Do you have any writing paper?

A:Yes I do. I don't have any small pads. I only have large one. Do you want a pad?

B:Yes,please. And I want some glue.

B:A bottle of glue.

A:And I want a large box of chalk, too.

B:I only have small boxes. Do you  want one?

A:No thank you.

B:Is that all?

A:That's all thank you.

B:What else do you want?

A:I want my change.

-----------------------------------------------------------------------------------------------------------------------------

单词：

envelope：信封。

writing paper：写字纸，信纸。

shopassistant：售货员。

pad:信笺薄。

chalk:粉笔。

change：零钱。