听力题 Convention varies from country to country. In China, newly married couples, of course, receive many kinds of gifts from friends, colleagues and relatives. How they can do with the gifts if the couples find them not to their taste? Usually they can do nothing but keep the gifts and give thanks to the givers. In the United States, couples also usually receive gifts from their relatives and friends when they get married. But it is common that sometimes a bride will exchange a gift for something else if she doesn''t find it useful. We give gifts to express our good wishes for the marriage, but gifts aren''t necessary for the marriage itself. However, in some societies gifts are very important, and the marriage isn''t legal without them. One type of gift is called bride service. A young husband must work for his wife''s family. He may work for as long as fifteen years or until the third child is born. Bride service may seem strange to us, but it is necessary in societies where people don''t have money or material things to exchange at marriage.