问个英语语法问题哈The decision having been made,the next problem was how to make a good plan.为什么用having不用had?还有就是改为Having made the decision 做开头可以吗?

问个英语语法问题哈The decision having been made,the next problem was how to make a good plan.为什么用having不用had?还有就是改为Having made the decision 做开头可以吗? 问个简单英语语法百度？ 问个英语语法问题,在定语从句中,who也可指代动物?而不是用which? 问个简单的英语语法问题this is the book which you asked for 是正确句子那为什么说： this is the book which you asked 就不对 英语语法专家来 下面2个问题 问个英语语法问题这句话的前面部分是什么语法?Rich as the boss is,he hardly knows how to write his own name.就是有as那部分, 问个英语语法的简单问题.词类转化具体是怎么转化的,比如动转名,形容词转动. On the last day I made a big decision 我在新概念英语上偶然发现这个句子```我觉得有错```这里可以用ON吗 我认为应该吗ON 去掉.哪位朋友能给我个正确的答案 并 我认为正确的应该是：I made a big decisio 问个问题哈...火星下 问一个英语语法问题.我是英语菜鸟Now let me enumerate the reasons one by one in the following.为什么这里的reason 要加s呢? 问个分式问题 问个英语问题, 问个分式问题 问个火星问题. 问个英语语法问题,I HELD THE POSITION OF RESEARCH ASSOCIATE THERE IN 2001.I HELD THE POSITION OF RESEARCH ASSOCIATE THERE IN 2001.这句话里 到底是谁 ASSOCIATE 是 POSITION 还是 RESEARCH?另外,如果我在 RESEARCH前面也加个 THE 问个英语语法的问题我看美剧时里面人说 “我试过了” 用：I did try 而不用 I tried?还是说都可以? 问个低级的英语语法问题感叹句式:How+adj还是advwhat+a/an+adj还是adv例句:How_________(beautiful) Kitty dances!速回 问个基础的英语语法问题在疑问句中什么时候加DID等助动词,什么时候不加?比如where did you go,who wrote you this letter