Schools remain very much what it has always been, and what changes have occurred cannot be attributed to technology.老师好，请问主语从句what changes have occurred 中what充当什么成分？
... and Tianjin are more closely connected and the urban environment has also been greatly improved."Fifteen years ago这个时间的立足点是从现在算起，正常下其后应该用一般过去时劳烦专家老师为我解惑，最好有个时间轴，具体，我的理解能力确实差点儿...
...he only apparently significant difference in the Americas 11,000 years ago was the presence of human hunters of these large mammals. Was this coincidence or cause-and-effect?请问老师，这里的see是什么用法？是指某件事情被看见发生了吗？ 字典上貌似没有找到相关释...
...in his life. ） 4.It was the greatest regret in his life that he had been absent from the graduation ceremony.5.It was the greatest regret in his life that he had not attended the graduation ceremony. 请教老师，句子1,2,3 的主语有何差别？句2中含有不定式的名词短语...
...ention of other teams, who had sent their own leaders, to meet with her as was the custom. 1、曹老师之前提过第一个句子as引导比较从句，第二句是否也是比较从句？2、为什么第二句的was在the custom之前呢？3、加不加逗号对于句子有什么影响？谢...
原句：We asked some friends around to watch a film, but the video was playing up and it eventually broke down.翻译：问题一：ask around的本意不是询问的意思吗？问题二：还有was playing up不应该是had been played up吗？表示电影已经开始了
...上。00话题引入在句子When deeply absorbed in work, which he often was, he would forget all about
eating or sleeping. 中，which指代的对象为？01定语从句中关系词可以指代非名(代)词成分或非句子(分句)吗？答案是肯定的，这和中学阶段的说法不太一...
There was little soloing as such, although some New Orleans plays, particularly cornet player Buddy Bolden，achieved local fame for their ability to improvise solo. Later the idea of the chorus -long or multichorus solo took hold. Louis Armstrong's instrumental brilliance, demonstrated through ...
...事。
If he had known about the win I would never have known whether it was(就这里)me or the money he would(就这里) want to stay with.
这里的was和would是如何确定的？与虚拟语气是否有关联？
Over the past 20 years, says the report, forest cover has grown by
5.7%, or around 40,000 sq km, an area roughly the size of Switzerland.请问老师an area，the size...是不是都是forest cover的同位语？
...hop.a. was gazing at b. gazed at c.had gazed at d.had been gazing at这道题目的选项 had gazed at 和 had been gazing at 分别错在哪儿? for several minutes 表示已经盯着看了一段时间了,为什么用gazed at?