It’s only when we have left school or college that we understand the greatness of our opportunity of education, which has gone for ever.请问which所引导的从句的先行词是？
...re that 是什么用法，这个吗？ ~ sth + noun The area hasbeen declared a national park.这地区已公布为国家公园。 感觉很牵强
A bystander wrote a poem about the event ,then,at some point ,Hale herself seems to have helped write it.
then是adv，那个句子是...
A closer sight showed that these pieces had been left behind in the fires of ancient peoples who had melted rocks to get metals,looking around, he found more and more information,until the history of what men had done at the place over tens of centuries was known.
这句话后半部分句子成...
...ive reasons to thank your workout buddy," but it could have just as easily been titled "Five benefits of having a workout buddy." One is "You'll actually show up if you know someone is waiting for you at the gym." Also: You'll work harder if you train with someone else. And, just as you have your ow...
老师您好!He hasbeen able to tell us more about active volcanoes than any man alive.本句中 more 我理解为是形容词“更多的”，而不是代词，做 tell 的宾补，而 about active volcanoes 介词短语做状语修饰more，这样理解是否正确？盼复！谢谢！
...ed reading it.2.The project will not start until all the
preparations have been made.请问这两个句子为什么填完成时，尤其不懂第一个，虽然书上说在条件句里现在完成时可以替换将来完成时，但是不清楚为什么用现在完成时，难道不可以用一般...
...部分，不定式在这一句是什么成分？In a systematic attempt to obtain a detailed account of the qualifications and activities of the clergy he ordered several unpopular inquiries. This, and the good archbishop's impressively prominent nose, might be thought more than enough for his p...
... make a prayer book. So the pages, the pieces of parchment themselves, had been preserved. But the Archimedes' text was erased and written over, and no one knew it existed. It wasn't until 1906 that a scholar came across the prayer book in a library and realized it was a palimpsest, and that...
--It’s said that the new shopping mall hasbeen built.--Yes, but we don’t know ____it’s to be opened to the public soon.A.when B. whether.请教老师，原句已经有soon了， 还能再进一步对具体时间提问吗？虽然已经知道是soon近期，但是还想询问哪一天。所以...
1. Maria has written two novels, both of _____ have been made into television. A. them B. which请问为什么这里A不对？不能看作是逗号隔开的两个简单句吗？2.She brought with her three friends, none of ______ I had ever met before.还有这句, 如改写成She brought with ...
...ated our wish to understand where people are at
and help, the response hasbeen really strong.我的语感第一感觉那个at是多余的，但仔细分析也看不出问题，系词are接介词at，where作at的介宾。请问at在这里究竟什么用法？能不能去掉？
比如例句：To realize how great was the dramatic activity, we must remember further that hosts of plays have been lost.
这里为什么不是how great the dramatic activity was，而是how形容词+谓语+主语？