函数可导性与连续性

Learning English well is not easy和It is not easy to learn english well.这两个句子有什么区别?Learning English well is not easyIt is not easy to learn english well.这两个句子有什么区别?是不是有什么句式来着 He is writing a letter in his study. （否定） Ann is writing a letter to grandma.对划线部分进行提问grandma划的线------- 非洲有哪些国家说英语 My sister is wriiting a letter in her bedroom的翻译 My sister is in the bedroom（.对My sister提问） 英文book review.明天要交了.是英文的故事书啊.不要太简单的.要写上：1.title2.author3.publisher（要不要写都可以）4.what happens in the story5.which is your favourite part?why?6.why is the book interesting / exciting?7.wh 1.learning English well is not easy.（改为同义句）怎么写?学1.learning English well is not easy.（改为同义句）怎么写? 3.to learn english well is not easy.(改为同义句)______not easy_______ _______ english wel. 英语翻译,我们选他当班长 我们大家都赞同我们的班长.（翻译成英语） 我听说她已经被选为你们班的班长了 翻译成英文 三（1）班的班长兼英语俱乐部主席怎么翻译 I heard a letter from my sister yesterday 改错 I got a letter from my sister yesterday.she lives in sydney.I had a letter from my sister yesterday.She lives in Nigeria.In her letter,she said that she would come to England next year.If she comes,she will get a surprise.We are now living in a beaut Last Sunday r( ) a letter from my sister. It's difficult to walk__your home __mineThere is lots of trees__the pool The letter is from my sister .I receive it yesterday.(合成复合句） 两道介词填空1、父亲要我用自己的话把故事重讲一遍.Father wanted me to retell the story ____ my own words.应该填in还是with,why?2、(从)上海到昆明的火车要穿过多少隧道?How many tunnels (隧道) does the train fr my sister will come from rome.my sister _____ from rome 关于介词的两道填空A)Ted cut the apple ()halfB)Ted cut the apple ()halves该填啥?两句中的half,halves有不同吗? 两道英语介词填空1.The terrible traffic accident will serve ______ a lesson for those careless drivers.2.Here is a chance ______ everyone to learn new skills.请简要说明原因 为什么有些动词只能接动词不定式做宾语?为什么有些词后面只能接动词不定式,不能接动名词?这些词有什么特点?请别把那些单词都给我写上来. "with"的反义词是那个单词? 词形转换with (反义词)piano(复数） math（复数） with(反义词) visit （名词） busy（反义词） babysit （现在分词）invite （名词） quiet （副词） thirty （序数词） who（宾格）将这些单词转 m0st,with的反义词是什么? with(反义词)?sheep(名词复数） 补货,不良品的英文是什么,不良品分次品和废品 我一个人也可以过的很好,翻译成英语 我们班没有一个人知道怎么拍电影翻译成英语 返工补货用英语怎么翻译? 我们班有一个人的名字和我一样的说翻译成英语