已知双曲线C的中心在原点，焦点F1F2在坐标轴上，且经过点根号2，-1

cost与spend与take的区别》》 take spend cost次vcvbc 现在完成时可以用非延续性动词吗?以下两个为什么用了非延续性动词?难道可以吗?如果可以,什么时候用非延续,什么时候用延续性动词?1.Where is your father?He ___B____to Australia on businessA has beenB has 英文的第一段要不要空两格?急 Would you like to listen to music?(改为同义句） ______ _______listening to music?填什么?原因. Look!She is reading a book ____ hobbies.填介词 请说明填介词 请说明原因 I'm looking for football cards(对football cards提问)Mrs Wang listens to music every day.(用 at the moment 改写）She is playing a new computer game now.（对 playing a new computer game 提问） I am looking for ______football. 德语状语 这个请问一下助动词和be动词分别有哪些? 德语状语啊Akk/Gen都能做时间,地点,方式的状语 都表示什么? 我只知道二格时间状语表不确定（泛指）时间 其他呢?什么情况下用?问题补充：就是二,四格名词做状语啊 德语里的各种状语,什么时候放句子中间,什么时候必须放后面?状语放句首句子倒装的不用说了,我会. miss guo is reading a book _about oceans_.(提问） Miss guo is reading a book on ocean.(划线部分提问)__ __is Miss Guo reading?划线部分是on oceanMiss guo is reading a book on ocean.(划线部分提问)______ ______ is Miss Guo reading?划线部分是on ocean They don't like people standing agaist the barwhile there are many customers waiting for service 翻译 A lot of people are standing in line and waiting to pay the goods . Gail and his dog,Sam,are standing at the street corner .They're waitingGail and her dog,Sam,are standing at the street corner.They're waiting for the cars to go by.They want to go __36__ the street.She is waiting for Sam to decide when they cross.__3 bus的复数是什么? 时间状语就是表示时间的状语吗? Last Sunday they worked in an old people's home a-----------volunteers,该填什么a开头 I owe you one.我欠你一个人情.这里哪有人情的意思啊?one是代词为什么不代表别的东西呢? 我的名字是晓晴,帮我取一个英文名 How long will it ___ you do the job?A.cost B.spend C.last D.take ___will 'swan lake'last for?A.how far B.how long C.how often D.how soon wash the clothes是什么意思 shall 做情态动词的用法详解 cost, spend on, pay for, take当花费时间金钱的时候有什么区别 要比较全面的谢谢了 You owe me, i'll let you pay me double 什么意思 It’s very long from here to your school.(改为同义句)It’s very long from here to your school(改为同义句) 非常紧急,请大家快发表您的意见 Dose yuor brother often wash clothes themselvse?改错,并说说为什么?请问这句话哪里是错的?谢谢雷锋同志了! Li Ming often helps his mother___clothes A:wash B:to wash C:with wash 选哪个三个答案分别在什么时候用? 情态动词should有哪些解释最基本的是应该,还有表示“竟然”,还有那些意思?碰到一些什么词的时候就知道肯定选should?就是跟那些词搭配