...在完成时.而在Never before did I see such a terrible car accident on the road中却用一般过去式。它们同样都是Never before开头，都是以前从没有…。我怎么判断什么时候应该用哪种时态呢？是因为第二句中有on the road才选一般过去式吗？谢谢!
...另一个是who引导，用了复数are？What this finding means is that there’s a significant
portion of the population—14.9 percent in the data set—that doesn’t qualify as
being poor based on income, but who are
struggling because they are deprived of certain necessities.
...词是缩合连接代词what)（2） This was when I
really got to know the United States (关联词是缩合连接副词when)还看到您举过的一个例句：COCA例句：The neighbors still remember when Chase and his
family were dealing with the illness请教曹老师，为什么以上几个...
...答案为 B）：05. One
learns a language by making mistakes and ________ them. A.
correct B. correcting C. corrects D. to correct◎2012高考英语“北京卷”第23题（答案为 D）：23. One
learns a language by making mistakes and ________ them. A.
c...
I didn’t follow the speech exactly, but I caught the main idea of what _______. A. is said B. was saying C. had said D. was being said请问选哪个？顺便分析一下，谢谢老师！
The cyclone is one of the most powerful and deadly of storms.这是一本英文字汇书的例句。powerful 是形容词，deadly应该也是形容词才对，后面可以直接接名词storms. 这里为何多了一个介词 of ?Thanks in advance.
The shortcomings of a small party pale into insignificance when set against the great benefits it will bring to us —time-saving and cost-reducing.请问：(1) benefits 和 it 之间为什么没有逗号？(2) it 指代的是什么？
first prize前面用不用冠词有什么规律吗？比如：He won first prize. 他赢得了头等奖。His flower arrangement won first prize. 他的插花赢得头奖。He captured the first prize in the competition. 他在竞赛中夺取了一等奖。另外，可以用不定冠词吗？
老师好，请问下面how...句子成分是什么样？How utterly reckless of humanity to have rushed past the Holocene boundary, ignoring—like a character in a horror movie—all of the obvious warning signs.
He then says a few things to the woman, pats on her head and pushes her softly as she faints in the end.背景：这里是对一个场景进行描述，其中的he是一个印度巫师，把通过抽打句中那个妇女的方式给她驱魔。请问：这里的as作何解释？
The date is close to that of the introduction of printing into England by William Caxton. 我觉得这里的printing into England by theWilliam Caxton可以做introduction的后置定语，为什么要加of呢？