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W:Jack, come and look.
M:How beautiful! Do you stamps?
W:Yes, I've got lots of stamps. Collecting stamps is my .
M:What are ?
W:This one is a stamp from Canada. And this one is from . It has a picture of the Great Wall on it.
M:Oh, I have a letter from the US. There is a of the US on it.
W:Oh, it's very nice.