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begin to do sth和 begin doing sth的区别 begin to do sth./doing sth.的区别在于? 是begin to do还是begin doing 或是都可以? wake up all alone now 下雨的时候去游泳 我想试试噢 有人能回答出来吗?" 下雨的时候空气中怎么会有雷电?是怎么形成的? 动物和农民,谁比较贫穷 how didn‘t you notice还是How come you didn't notice我想表达“你怎么没注意到” a和an 的用法 、什么是元音因素元音和元音因素有什么关系. a good boy/ an abandoned car 中a/an的用法,an用在元音前,可是abandoned是元音开头的吗?在词组中a/an 是根据中间的adj来确定还是根据后面的n来确定, she wasn't understood.为什么用wasn't,而不是didn't?什么时候用is什么时候用does? 选择：kn_ _s a.ee b.ae c.ea英语强的教一下 哪种动物被誉为东方瑰宝 元音 加a或者an...怎么确定啊是不是音标开头为 a e i o u 的加an啊? He said,"I saw her in the street."(直接引语变间接引语） 东方宝贝动物医院怎么样 龙生龙凤生凤老鼠的儿子会打洞,这种现像与细胞中的哪一结构有关? didn‘t be 与weren't有什么区别The foreigners （）there ,But they （）the food there at first A.used to live ,didn‘t be used to B.used to live ,weren't used to C.are used to living ,didn‘t use to D.used to living ,usedn't to 过去式变否定什么时候用didn't什么时候用wasn't或weren't如例句I didn't go to the park yesterday可不可以等于I wasn't go to the park yesterday 怎样辨别及物和不及物动词? 请问联系人：杨炽洪英文翻译 什么are you?的答案是fine,thank you lose the time 全面点 最好举例 单数,复数分别用be动词那个啊 求用c h h 为开头组英文词组! 求开头是t跟f的英语短语求大神帮助最好是可以当网名的、谢 living,alive,lively,live四个有什么区别啊living,alive,lively还有live本身也可以做副词讲那么这些有什么区别呢?我搞不大清楚 为什么不能用saw?why not go to see a movie with lydia?because i（have seen） it为什么不能用saw?why not go to see a movie with lydia?because i have seen it 哪能下载西班牙语歌donde voy啊 用borrow或keep填空:I'll lend my English book to you,but you can ( ) it for only one day. He won't seen the film because he__(seen )it twice. Jack didn't go to see the film because he ______ it twice.A.had seen B.saw C.has seen D.sees