Not having obtained a ticket for the match, I can only watch it on TV.这个Not having obtained是什么用法?啥意思?是哪句话的简写吗?属于什么语法呢?not后面加名词词性的词语对吗?所以having obtained是名词词性吗
真题:The sheer volume of animal transport necessary means it's unlikely that this livestock could have been brought from anywhere further than England.necessary可以后置吗?The necessary sheer volume of animal transport 这样写对吗?