...音的老师上完课，即将结束时对学生说："If you liked this video, check out the first one on the Path of the voice, or the next one on Tongue exercise and Tongue relaxation."请教老师： 为什么要用虚拟语气liked？为什么不说If you like...？ 怎么理解含义...
A： Roberto and Sophie are on hoilday ，are‘t they？Where have they gone ？B：To Florida ，again . A ：How many times ____ they ____there? B: This is their third visit.第二组填空答案填have been 我不明白为什么，have been 的意思不是去了已经回来了么。
1. In the last act, a gaoler would always come on to the stage with a letter which he would hand to the prisoner.2.The curtain went up on the final act of the play and revealed the aristocrat sitting alone behind bars in his dark cell这里为什么一个用 in，一个用 on？
He couldn't know that at this very moment, people meeting in secret all over the country were holding up their glasses and saying in hushed voices: "To Harry Potter -- the boy who lived!"
老师好，能否分析一下people后面的"meeting..."是限制性的还是非限制性的，以及people前...
...带感情色彩，只是表示陈述事实，例如：2-1：We regret that this should have happended.2-2：We regret that this has happended.我的困惑是：1）为什么说明同一个问题（不用推定should，不带感情色彩），485页对照例句1-2用了married,而没有用has married...
He is the man visiting us yesterday.He is the man who visited us yesterday.这两句是否都正确呢？我知道现在分词做定语是表示“主动”、“同时”。那这个地方的用法是否有问题呢？Do you know the people coming to the party tomorrow?这个句子我判断应该...
...题：
▲I walked up to the top of the hill with my friend, ______ we enjoyed a splendid view of the lake.
A. which B. where C. who D. that
此题答案是 B，这个好理解，因为定语从句的主语、谓语和宾语是完整的，不缺主语或宾语，所以不能选关系代词...
This pop band is just today's version ... so people in China will not find it strange and find it easy to accept.不定式to accept是什么句子成分？是find的实际宾语还是easy接的非限定动词，或者是状语？谢谢老师的解答。
... have some sort of advantage-however slight- that'll eventually enable this species to dominate and ultimately exclude the other one ...even cause it to become extinct.教授: 高斯说，不论何时都存在两个相似的物种竞争同样的有限资源，其中的一个物种会占据...
This came about from two major developments: paper became common,
replacing parchment as the major medium for writing, and rounded scripts were
regularized and perfected so that they replaced the angular scripts of the
previous period, which because of their
angularity were uneven in height.请教...
This view of knowledge leads to conventional school practices: mandating that all students learn certain subjects; insisting that subjects be fragmented one from the other; and enforcing a certain progression of information that follows an external logic.老师好，请问 one from the other...
But look at this today, well as you might be surprised, or might be not surprised, it’s No. 1 BBVA（Banco Bilbao Vizcaya Argentaria）from Argentina says soybeans and iron ore just right here which is used for steel account for 40 to 50 percent of all Brazil’s export to China.well as这里是...
...ut not another, whereas others are sensitive to the smells of both flowers.This may be beacause some people do not have the genes necessary to generate particular receptors in the nose.These receptors are the cells which sense smells and send ____ to the brain.上面完形填空的空格处正确答...