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翻译成英语； 你认识孩子们非常喜欢的怀特先生吗? J.K.Rowling is working on the ______ and last book in the Harry Potter series.空白填什么? 高中三角函数证明题,(cosa)^2=1/(1+(tana)^2) 数学三角函数：tanA=根号3/3 tanB=1 判断三角形形状 please come over to my house ( ) ( ) this question请顺便来我家讨论一下这个问题。 有一首英文歌曲不知道名字 只知道一句歌词 no no no no歌名中有英文又有中文 哪位帅哥或美女知道帮小弟一下 come over to my 英语划分句子结构:Let's have a look. Let"s have a look at.这个句子有什么错误? It wasn't long before和 It won't be long before的区别It wasn't long before.和 It won't be long before...的区别举例儿说明句意有什么不同？/举例说明呐这样看来感觉没啥区别嘛。 It wasn’t long before he learned English. It wasn't long before he left the country.怎么翻译? A good friend of mine from when I was born showed up at my home right before I left for Beijing.这是个什么从句? it wasn't long ()he joined the job.A that B before C until D and为什么选B A good friend of mine from when i was born shown up at my home right before i left for Beijing.为什么填when?这是什么从句?是定语从句还是宾语从句?when在这里面的词性是什么词? Tom is very taller than I 请问哪里错了?哪里有错?这是一句改错题 急求关于钱的英语小论文,演讲稿也行!求一篇关于钱（如钱不是万能的,钱可以看出是否的真的朋友,不能为了钱什么都不顾.等等.中文200-400字,要英文版的!谢谢急用!能写下中文吗?谢谢 Let me have a look.同义句 Let's have a look at this movie 的同义句 Let me have a look.同义句转化 I___ ___have a look His father is a (woeker).就划线/括号部分提问 His father is a bus driver.(a bus driver划线提问）____ _____does his father do? His father is a driver .(变否定句） tom often makes his sister cry ,but this time he was made___ by his sistercry 还是 to cry 还是crying Tom loves ______ _____ _____ ______(玩电脑)with his sister in the study 推一个数学三角函数公式哪位高手帮忙推下面这条公式：cos(x+y)=cosx.cosy-sinx.siny要过程~ computer,work,i,the,with how long _______ he__________London before he came here? before 怎么对His father is a worker的a worker提问 My father is a worker.对划线部分a worker 提问 What ( ) your father? his father is a worker. 的问句