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交际示范：( 1 ) A : Good afternoon , sir . What can I do for you ? B : I want to buy a birthday present for my son . A : How old is your son ? B : Fifteen years old . A : This radio is very good , sir . B : How much is it ? A : It is worth $40 . B : Oh , that\'s too expensive , I\'m afraid . A : Then what about this walkman ( 随身听 ) ? Many students like it very much . This is the most popular kind . B : How much does it cost ? A : It\'s only $25 . B : OK . That\'s fine . I\'ll take it . I hope my son will like it . ( 2 ) A : Can I help you ? (责任编辑：admin) |