x平方的不定积分

They are (write) a letter they write some letter 的否定句 西班牙的巴塞罗那市属于什么气候?这种气候的特点是什么?该气候主要分布在什么地区? 一般过去式和一般将来时态的语法.还有还有,情态动词怎么用?后面跟动词要原型吗? 过去式里的将来时态怎么表述?比如翻译这句话：他跟说我今天晚上会把表格发给我.是这样翻译吗:he told me that he would send the table this evening.这里的将来时状态是用would来表示吗? 北京与巴黎相比气候如何?选择,1.巴黎比北京冷.2.巴黎比北京温暖.3.巴黎比北京干燥.4.巴黎气候与北京相同. tired的过去式 tired是谁的过去式 人面兽心 英语怎么说?人面兽心 翻译成英语短语 write I read English and can in(连词成句）有没有哪位大侠知道啊? Let___(we)learn and read English.这个we改成什么形式合适? Only after he has acquired considerable facility in speaking _____to learn to read and write.A.he began B .will he begin C.did he begin D.must he begin本题选B,为什么不选择C,DC为什么不行，表示强调啊 披着人皮的物用英语怎么说? “英语”能成为中国的第二母语吗? 皮棉鞋用英语怎么说? 如何将英语成为第二母语 If you have problems in your schoolwork,who can you get help from?☆Teachers are important persons for you because they can give you some specific（具体的）advice on your problems.They can also give you some useful ideas about how to finish sch 急求一篇英语作文：write a letter to a friend or relative asking for advice on problem you have最好写出来还带中文翻译一下. Please call me if you have any problems （ 填入work的适当形式 ） out.Please call me if you have any problems （ 填入work的适当形式 ） out.括号处为什么填working? 利用电子词典学英语好吗? 急求学英语的电子辞典急求学英语的电子辞典 据说卡西欧的还不错100/200/99 可以纠正发音吗？ 介绍一本kk音标的词汇书 有MP3朗读的更好用美式KK音标注释的词汇书蛮难找的,知道的朋友介绍下哦 蠢的英语单词,表示动词的 We can write a poem about nature,too.(改为否定句）We _ write a poem about nature,_.注意最后那个空 could a great english person help me write a poem about christmas pelasea peom that is about Christmas thats rhymewrite it in one day ant type it You are about to write a poem ,aren't you =A poem ___ (by you),___?A.is about to be written ; aren't you B.is about to be writing ; isn't it C.is about to be writing ; aren't you D.is about to be written ; isn't it (中文解释下, A love poemThe love that I have is all that I have,And the love that I have is yours.The life that I have of the love that I have,Is yours ,and yours ,and yours.The sleep I shall have the rest I shall have,Yet death will be but a pause.For the peace Write a short passage about mother's love.写一篇关于母爱的文章,体裁不限. 混蛋用英语怎么说 英语是个王八蛋,用英语怎么说地道点的. write a thank-you letter to your mother/father/teacher/friend You'd better write a letter of___(apolpgize) to your teacher