Mrs. Brown is  a ____(Canada) teacher in a middle school. She t____English. She often helps her students ____ their study. Also, some ____(foreigner)children can talk with her ____(practice) English online.

    Li Yan, a girl from China learns much____Mrs. Brown. She is ____(excite) these days because she won first p____ in the English competition last week. She ____(real)improved a lot. When Mrs. Brown knew this, she was ____pride) of her. She believes Li Yan can do better. 

在下面一段文字横线处补写恰当的语句，使整段文字语意完整连贯，内容贴切，逻辑严密。每处不超过15个字。

    古建筑是珍贵的文化遗产。____，一旦毁坏则不可能复原。古建筑能激起人们的民族自尊心和文化认同感，每个民族的人民都会为拥有世界级的文化遗产而感到无比自豪。然而，____，比如，在城市开发建设中，古建筑常常受到惊人的破坏，因此，____。

pas_  _（超过）