David,I can't send these letters if there aren't any s_____ on them.
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David,Ican''tsendtheselettersiftherearen''tanys_____onthem.David,Ican''tsendtheselettersiftherearen''tan
David,I can't send these letters if there aren't any s_____ on them.
David,I can't send these letters if there aren't any s_____ on them.
David,I can't send these letters if there aren't any s_____ on them.
stamps 邮票.