I’m talking about people who have stopped learning on growing because they have adopted the fixed attitudes and opinions that all too often come with passing years. 这是 2019天津卷阅读D中的一个句子，请问 on 是什么用法？
Behavioral synthesis tools are starting to appear that automate the process from about step 2 onwards.请问这里 that 后面的部分不是从句，automate 是动词。这里that后的内容作为什么语法理解呢?
The guard rails that will be familiar to anyone who has attempted to cross a road were an engineering solution to pedestrian safety. 句中的has attempted换成attempted有什么影响一直感觉完成时和过去时的区别似懂非懂谢谢解惑
If we weren't together, I'm not sure you would have agreed to let me borrow the money.1.这里是从句是对现在时间的假设，主句是对过去时间的假设，可按道理如果主句是对过去的假设，从句也应该也是对过去的假设，所以为什么不用If we hadn't been to...
Stephen ________ a new model plane the whole morning,
but he hasn’t finished it till now. A. is making B. was making 老师好，请问这道题选现在还是过去进行时更好？我觉得两个都可以，但是我第一感觉是现在进行时，表示从过去做到现在模...
it
would bring into question its commitment both to the data and also to its 2%
inflation target .老师，请问一下为什么把 bring 的宾语
commitment 写在 into question 的后边,这不是正常语序，当时读这句话费力好多力气。
...e really communicated our wish to understand where people are at
and help, the response has been 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？
...谢“what is crucial to a successful classroom is to involve students.”the professor
said.（be crucial to）“一个成功课堂的关键是让学生参与进来。”那位教授说1．划线部分为什么使用what做主语2．what is crucial to 可以使用Being crucial to代替吗？3．to...
I gave the book to my father to read, and within a day he left me a
voice mail saying that it was wonderful
and that I was going to sell it for $300,000.请问老师：1现在分词短语saying that it
was wonderful and that I was going to sell it for $300,000是做状语成分吗，saying的逻辑...
...位语，如：
We each have a map. 我们每人都有一张地图。
They each had a bedroom. 他们每人有一间卧室。
They each signed the paper. 他们每个人都在文件上签了字。
请问，each 除用于主语后面作同位语外，还可用在哪些成分后面作同位语...