一道基本的英语语法题When he was here last year,our new library ________ .A.was buildingB.has been builtC.was being builtD.was to built请问其他几个选项为什么是错的?

一道基本的英语语法题When he was here last year,our new library ________ .A.was buildingB.has been builtC.was being builtD.was to built请问其他几个选项为什么是错的? 一道初三英语语法题Do you know__________?A. when he has come B. why he didn't comeC. if he comes tomorrow D. whom is he looking forC为什么错?那B为什么可以用过去式？ Hdu上的一道题1058,一直WA呀,为什么#include#define min(a,b) a 大家说,最基本的英语语法是什么? 一道英语语法题._____ he shout in the vicinity of a wall,an echo will come back.A.Should B.If C.When D.Though选A的话,不是应该是虚拟吗?那主句为什么不用would? 一道高中英语语法小题. ( )he made another wonderful dicovery,_________ of great importance to scien 简单英语语法题 求快解~Must 和have to 的区别 好像一个主动一个是被动?He will come till 10 o’clock. –这是一道改错题,为什么正确答案是will改will not 呢?When/while的区别.Go through 和 go across的区别 一道英语语法题,答案选的是that... 关于基本不等式的一道题 微分学基本定理的一道题 一道基本数分的题, 一道高中有关基本不等式的题 问一道非谓语英语语法题He dropped a plate,____it into pieces后面是broken 还是breaking?从句的主被动是看从句还是看主句? 谁知道这首网络歌曲,歌词大概it is wa wa with when you feel in .是一首轻快的歌曲 请教一道英语语法题请教一题英语语法题,Walter offered us a lift when he was leaving the office,but our work_______,we declined the offer.选项:A.not being finished B.not having finished.C.had not been finished D was not finished 每 问一道基本的英语语法题,Most people _______ to the conference next month are famous scientists.A.been invitedB.being invitedC.to be invitedD.inviting请问C选项错在哪里? 最基本英语语法 初中基本英语语法