讲下will have done用于第二三人称做主语时表一般将来时的用法

讲下will have done用于第二三人称做主语时表一般将来时的用法 will+have done will have done 还是will have did? The work ___A____ by the time you get there.A. will have been done B. is done C. had been done D. would have请高手讲下其中的语法知识,再翻译下,我将感激不尽!为什么要选A.谢谢! have sb./sth.的do,done,doing,to do 的区别?讲下语法点. 英语,will have done怎么用 will have been done怎么用 can表示对过去的推测不能用于肯定句?语法书上讲：can have done表示可能已经做了某事,又讲：此时can 仍只用于否定句或疑问句,不用于肯定句.这是不是说这种情况：he can have done no work 请问could not have done/might not have done可用于虚拟语气中吗 情态动词+ have done一定用于虚拟语气吗 英语：should have done是否用于虚拟语气? will be done和will have done是什么情况could have been呢 need have done ,must have done ,can/could have done ,should have done 的区别是什么?意思是什么?主要用于哪种句型?请分别举例说明, will have done和will do的区别 would have done的一道题Given more time and space,she____more books,although she has weitten a dozen books.A.will write B.would have written C.would write D.would have been written该选什么 讲下道理 written 不好意思 打错了 would have done&would not have done意思分别怎么讲? 英语：will have done会议讲在八点结束是不是可以这么说呢?the coference will have finished at 8o'clock 和will finish at 8 o'clock是不是都对呢? 英语：will have done会议讲在八点结束是不是可以这么说呢?the coference will have finished at 8o'clock 和will finish at 8 o'clock是不是都对呢?