已知椭圆的两个焦点分别为f1f2

Helping animals in danger,the _____ is to stop people _____ them.A.difference；to kill B.different；killing C.difficult；to kill D.difficulty；killing说明原因喔 划线部分提问 People are trying to protect them.（划的：are trying to protect them） The panda are rare wild animals in China.People______(try)to protect them. The WWF tells people about animals that are in danger and raises money to save them.这个是从句吗?是什么从句啊? 每天晚上要去值班室报到或登记 用英语怎么说 急还有宿舍管理员怎么说 或者值班的 值班经理的英语怎么说 "我在值班 ",用英语怎么说 This group of farmers painted many pictures of water flowing over the land and rain with lightning.长难句分析 with water heating还是with water heated______,we can see the steam from the kettle我不知道是不是和句子有关系 有首英文歌,女的唱的,有一句词是they call my name,they call me sexy.叫什么?节奏很快. Don't ____ it with the ____ water.(mix) 有首英文歌高潮部分就是let me go let me go女声唱的.什么歌!不是艾薇儿的 也不是苍井空的.也不是never let me go . 有首英文歌副歌中：dont let me go~dont let me go不是Westlife的那首 男声 一首3分54秒的英文歌,就知道第1个单词是I……中间有句是please let me go , I play basketball to help some poor people这句话有没有错误?为什么? 一首英文歌女声的(常在酒吧放),歌词里有LET YOU GO LET ME GO的!好象是I'LL NEVER LET U GO?是女声的.节奏满强的 中间还有说唱部分 快节奏的啊.不慢的.麻烦各位了.虽然很好听但是不是的 歌名好像不 It is a good idea for them to play games online这里的is可以省略吗 看单词写音标 看音标,写单词 如何把word里有序号的词组按字母排序例如1.by accident 偶然2.in accordance with 与…一致；按照,根据3.according to 根据…所说；按照4.account for 说明(原因等)；解释5.on account of 因为,由于 怎么在Word按每行的首字母排列?我有一些单词存在里面,前面是英文,后面是解释,每刚包括英文单词个它的解...怎么在Word按每行的首字母排列?我有一些单词存在里面,前面是英文,后面是解释,每 Many people like to watch others play sports games.同义句转换.Lots of people like to watch sports games.为什么不能把Lots 换成Many? ：完成以下短文.完成以下短文.Many people like to watch o__1_ play games.They buytickets or t__2__ on their TVs to watch the games.They get excited when their player or t_3___ wins.They u__4_ them in their soprts,too .…… Neither one is play computer games to much是否等于play to much computer games some people are just plain retarded“有些人真是傻的可以”? Many people like to u( ) them. Later,Farely (人名）wrote a book about wolvvvvs.He wanted people to ___ them and not to kill them.A not good B bot trueC not easyD not clear tom bought shoes from the shoe factory and tried to sell them to people求原文.急、10分钟之内加10分我说的是原文、不是翻译 Many people like to _______tonight's football match.回答：look have a look look like look for watch look aftersee look the same look forward listen hear like,I,football,to,play,people,with连词成句 求能给人力量的英文歌曲如 英语翻译我很想知道````````````````