A:I want to buy some stamps.
B:Would you like to buy a complete set or just the newest issue?
A:Please let me have the stamps issued after October 1980. May I choose from the sample?
B:Sorry, these stamps are to be sold in sets.
A:Have you any albums on sale? I would like to buy a few cancelled sets of these designs.
B:I suggest that you buy some mint sets and Ill c现在很多机构都说自己是情景式教学法，jh0451.com但是家长们对于这种教学方面比不了解。ancel them for you.
A:I want some stamps, please.
B:What kind of stamps do you need?
A:The one with little dogs.
B:How many stamps do you need?
B:That comes to 50 cents, please.