(1)面对面交流;
(2)电话交流;
(3)非正式会面;
(4)面谈和其他正式会议;
(5)半正式会议。
Read the following paragraphs and answer the question.
①Having been sitting out in his back yard in the snow for about an hour, Bobby was getting cold. Bobby didn’t wear boots; he didn’t like them and anyway he didn’t own any.