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.
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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。