非常谢谢专家cgh007您的详尽讲解！对您所摘的原句，还有不解之处：From the beginning of the review 下的 it，是否为形式主语，即，替代了 that 以下一直到句末呢？...
如何理解 the earliest of tribes 中的介词 of？如题
网上看到的一句话：The top U.S. commander in Afghanistan had been out campaigning for more troops on top of the 21,000 that Obama had approve
▲He must be sad. 他一定很伤心。 He must have been sad. 他当时一定很伤心。 关于 must be 对现在和对过去的推测这个知识我已经掌握了。请问，...
Tom has gone out. Tom_______. A. was out B. has been out C. is off D. will be out 对不起，由于匆忙，c 选项前一问题中打成了 out，其实是 is off, 实在对不起，请原谅！...
表示病得很严重，一般是用seriously ill 吧！但是英语可以说 very ill 吗？另外，要表示病得很严重，英语还可用哪些形容词来修饰 ill？谢谢！如题
看到这样一个句子：She is very athletic; she has a lot of get-up-and-go. 她体格健美，有活力，有朝气。觉得 get-up-and-go 这个词很有意思，英语中还有...
请问：Have a drive in my new car. 这个祈使句为何意？如题
a portrait of one of his favourite models seated on an elegant sofa. 请问这句话为什么seat 前不用加助动词，比如用 was se
1，A teacher is a person whosr duty is to teach.2，A teacher is a person whosr duty it is to teach.两句之差只在it 上，书上说：第...
如下面这句：We had the machine repaired. 我们请人修理了机器。可以这样改一下吗？We had the machine repaired by...
书上说 hear 不用于进行时，可是人教版上有这样的句子：They were hearing the story for the first time. 敬请专家解惑。如题
environmental pollution is becoming increasing severe with the progress and development of...
Have a drive in my new car. It is easy to start. 请问句中的it指代什么？it是指代名词the car，还是指代不定式to start？如题
说，quite可修饰动词，但不是可以修饰所有的动词，它只能修饰少数动词，我问这少数动词是指哪些，她说比如like, love, enjoy, fancy, forget等，我怀疑quite
下面是2013高考英语的北京卷考题：If we ________a table earlier, we couldn’t be standing here in a queue.A. hav<...