1A.one lost a leg,another an arm,____a third was killed outright 三个句子都是修饰说明the flight的并列分句.表示包含在内的时候including sth ;sth included.所以应该用A
2.C表示河水上升The river rises every spring.
raise一般是指通过人力使得物体上升
河水上升不存在被动
3.D（D选项应该是consisted of） 分析句子结构知道is 是系动词,powerful是表语,前面肯定是主语,所以A排除.made up of 一般指由物品构成.如The chair is made up of wood.C和D两选项consist时态不同,如果用C选项的话,那么句子中极有两个作谓语的,肯定不对.D选项consisted of eight richest countries in the world 作定语修饰The group of eight .
4.C as though和as if是一个意思.表示的是好像...仿佛...
5.B
take possession of 占领
take charge of 接管,管理
take notice of 注意,留意
以上解释中不对的请给我留言