[解析]
(1)D.细节理解题.根据"Zhao says things are much better in Hong Kong than in cities on the mainland where"stand right,walk left"signs are often ignored."可知在自动扶梯时,大部分香港人遵循靠右站,从左边走的礼仪.故选D.
(2)A.推理判断题.根据"In Hong Kong's subway stations there are regular announcements asking people to"stand still"on escalators.Even so,most people in this fast﹣paced city observe the"stand right,walk left"etiquette."可知本段主要介绍了在香港有些人并没有遵守"stand right,walk left"的礼仪.故选A.
(3)B.细节理解题.根据"Whatever the escalator etiquette is in the place you live or visit,do what most people are doing and always be mindful of others"可知作者认为人们应该入乡随俗并考虑他人.故选B.