A writer, and sometimes an artist, is invited to address the society.The teacher as well as the students has read it.请问老师，例句中的绿色部分是定语吗？还是同位语或是插入成分？不清楚的地方：句法成分通常是主谓宾定状补，那同位语和插入成分属...
Before then,the Falcon Heavy may earn its keep lifting satellites and carrying tourists on slingshot trips around the moon.牛津高阶：earn one's `keep work hard enough to cover the costs of one's food,
accommodation, etc 挣钱维持生活.请问老师上面这句话中，earn its keep...
1. We managed to arrive at the hall before the concert had started.2. He came in before I had done half the work. 请教老师，我们都知道发生在 “过去的过去” 的动作用过去完成时态，可是句中介词before前的动作先发生用过去时态；before后...
With regard to Futurist poetry, however, the case is rather difficult, for whatever Futurist poetry may be even admitting that thetheory on which it is based may be right—it can hardly be classed as Literature. 请问这句话中的even admitting that thetheory on which it is based ma...
______ from far away,the 600-meter tower is stretching intothe sky.请问这里为什么用seen，而不用being seen。Beginning from Buckingham Palace, this trip takes you tothe best of London's sights.这里用beginning 两题的不同之处在哪？
Over the past few months it has been working hard. With the help of media consultants, to play down its cosy reputation in favour of something more academic and serious.这句话该如何分析?
But the start of vaccination as we think of it today is generally credited tothe work of Edward Jenner, a British physician born in 1749. as we think of it today 引导的方式状语从句吗，as作为按照，正如的意思？
Cholera is coming back，warns the WHO，a powerful medical and environmental organization under the UN dedicated to maintaining world healthy.
请问，这里的UN与dedicated之间是不是应该加个逗号呢？
我在语法书里看到专有名词后面是需要用逗号隔开的。
I understand why Victorians are very concerned by the government announcing yesterday that it wants to extend the emergency powers for another 12 months. 卫报中看到的一个句子。请问句子中的by是什么用法？修饰的是understand还是be concerned？感谢指点
Teachers need to be aware of the emotional, intellectual, and physical changes that young adults experience. that定从的先行词是changes还是emotional, intellectual, and physical changes还是the emotional, intellectual, and physical changes
...n 是什么意思虚拟语气与陈述语气的混用Mary wrote a letter / the letters for an hour.错在哪(请教曹老师)现在进行时表示将来的问题主语是复数时后面的 than appears 为什么用单数动词（than从句省略主语）分析：You’ll see more if you walk and if ...
...See overleaf
for a list of abbreviations. 缩写语表见背面。Write the
abbreviations in full. Look at the example first. 写出缩略语的全称。先看示例。Put each
word, phrase or abbreviation in the right category. 将下列单词、短词或缩略语归类。It’s not
good s...
...如：He rode away whistling. 他吹着口哨骑车走了。She stood at the door talking to a neighbour. 她站在门口和邻居谈话。Everybody came in the room, singing and smiling. 大家唱着笑着走进教室。He walked along in front of me, holding the lantern. 他提着灯笼走在我...
Our family are all music lovers. But neither my parents nor I was able to go to a concert for some time. Yesterday, however, we could go to an open air pop concert. We arrived at the place long before it started.1. 为什么 but 这里单独用？2. for some time 是什么意思？