根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    Manners are important to happy relations(关系)among people. No one 1 a person with bad manners. A 2 with good manners never laughs at people when they are in trouble. Instead, he 3 to help them. When he asks for something, he says "4." And when he receives something, he 5 says "Thank you". He does not interrupt(打扰) 6 people when they are talking. He does not talk loudly or laugh loudly 7 public. When he sneezes or spits(吐痰), he uses a 8. If you are late, you   9 make an apology (道歉)to the teacher either at the time 10 after class.

党的十七大报告提出建设生态文明的新目标，建设生态文明需要（   ）
①实施可持续发展战略     ②贯彻科学发展观
③坚持保护环境的基本国策 ④先污染后治理 

①该国是南半球经济落后的国家

②丁地两侧的降水存在显著差异

③该国的人口和城市主要分布在东南沿海

④该国是世界上唯一拥有整个大陆的国家

⑤该国戊处的自流井不宜用来灌溉农田，也不能做牲畜用水