关于 be able 我看语法书上写的be able to表示成功的做成某事,不能用could.而新概念2册的62课 Firemen had been fighting the forest fire for nearly three weeks before they could get it under control.这里为什么不用be able

关于 be able 我看语法书上写的be able to表示成功的做成某事,不能用could.而新概念2册的62课 Firemen had been fighting the forest fire for nearly three weeks before they could get it under control.这里为什么不用be able 关于冠词the的用法语法书上说TV不用加the 而我看到了一句话是Acrossing to the TV,It will be fine today.为什么TV前会加the呢? 英文语法关于be的用法我生于中国 i am born in china 影片在进行 上演 the film is be on 我能够做到 i am able to do i hope you_the task in one week.A be able to finish B are able to finish C be able to finishingD are able to finishing 我要的不只是答案,我还要知识点,为什么选这个! 表示精神活动的动词可以用于进行时态吗?我的语法书上写着 please be quiet,I'm thinking 问几个单词用法的区别 be able to/cansimple/easybored/boringlook for/find顺便加上例句,用语请专业点！就上参考书上写的那种， 谁能帮我解析一下这个句子的语法:Were it not for him,i would not be able to speak English as well as i do now. There is something i might be able to do about that这里的that应该就是something吧 没有that我觉得语法才对呢 I will be able to dress more casually中的dress的语法知识是什么? 关于able的用法辅导书上说able接不定式时,只能接肯定的、主动的不定式,不能接被动的不定式.需要时可由can代替：His voice was not able to be heard.（误)His voice couldn't be heard.（正）但朗文字典上给 我自己写的句子,看有错误没.望修改Others thought you use up your father.You can prove to them that you be able to successful by youself. be able to 书上说只用be able to的情况有一种是位于情态动词后之前还说be able to是情态动词那样不就是一个句子里出现两个情态动词了吗到底哪错了不会的别答,我脑子正乱着呢 问关于倒装句两题：------------------------------------------------------------------------ 我的语法书上有两句话 一句是:Long live peace!另一句是:She'll be sixteen come May 我不明白为什么在这两句中 peace 和May都 用be able to的形式写作文I was able to read fables 5 years ago.I am able to understand the lessons of the fables now.I will be able to teach them to children in 10 years.仿照这篇,写一个关于音乐的 I have being coming to Beijing for fourteen years.我看了一本语法书上写的是：在过去的十四年当中，我常常来北京。然后有些疑惑， 找大神帮我看下这个英语段落有什么语法或者其他的错误吗?指出来希望给我正确的表达.American heavy metal band guns and roses songs, this song was sung cried million people. Always be able to hurt the bottom of my heart 帮我分析下这句句子,从商务英语口语900句上看来的.我看不懂We look forward to your early reply and trust that though our mutually cooperation we shall be able to conclude this transaction with you in the near future.语法上看 英语语法：It's strange that he ____ without saying good-bye to us.有矛盾A.should have gone out B.went C.should go out D.goes out我的语法书上写,strange后的主语从句虚拟语气,用should be （即C）,而在此从句中又有withou