a) ''I'd like some postcards, please.''
''How many postcards would you like?''
''I'd like three small and two big postcards. How much are they?''
''A small postcard is three lei and a big postcard is five lei.''
''How much must I pay?''
''Nineteen lei.''
b) ''Can I help you?''
''I want to send a letter to Canada. How much is an envelope?''
''Seven lei and 50 bani.''
''Here is the money.''
''This is your envelope and the change.''
''Thank you.''
