题目

阅读下面短文，在空白处填入 1个适当的单词或括号内单词的正确形式。The main reason why pigeons never get lost and can always find their way home is 【1】 they have a wonderful sense of direction by 【2】(main) using their sight and even their sense of smell to tell them 【3】 which direction they should go. The most 【4】 (amaze) use about pigeons was that in the scenes 【5】soldiers were being attacked during both World WarⅠandⅡ,pigeons 【6】 (employ) by armies to carry messages to and from the front lines, saving the lives of many soldiers and even关于欧洲西部旅游景点的说法，正确的是（　　）A．英国的峡湾风光引人入胜B．伦敦的艾菲尔铁塔令人景仰C．南部地中海沿岸国家的海滨沙滩优美宜人D．芬兰的花卉尤其是郁金香闻名世界