And
it is providing to be an increasing powerful tool in encouraging people to
purchase. 这是北京高考真题阅读理解中的一句话，这里的 it is providing that是什么用法， providing在这里该怎么理解呢？
我查柯林斯英语词典，翻到单词joke，发现这个句子The project was taking so long that Stephen joked that it would never be finished.joke明显是不及物动词，后不接宾语或宾语从句。请问句中joked后面的that（粗体字）是什么从句？
2022全国甲卷的一道语法填空：________ friend of his, WuFan, volunteered to be his companion during
the trip.这道题填A，他的一位朋友，请问可以填one吗？为什么很多语法填空表示一个的时候都是填不定冠词，而不是one呢？感谢各位老师的解答！
I want to be like a Home Depot… by
having a quality product available, at a convenient place and at the right cost,
while working with both our suppliers and internal customers to provide a very
high level of cooperation and customer service after the sale.请问：by having a quality product avai...
This was after the eu granted the government a short extension to the date on which Britain will leave, which could be April 12th if the withdrawl agreement struck between May and the eu does not pass Parliament.老师好，this is..是表语从句吗？我怎么觉得after缺主句呢？
They suggested that, where possible, asbestos-free materials should be employeed.Machine tools produce greater quantities of dust than hand tools and, where possible, the use of the latter was preferred.老师这两句话中的where possible是同样的用法吗，省略了什么？
...;is something that will hinder you from being able to do something.如何理解这里的先行词something指代的是什么，从句to do的something和先行词的something有冲突吗？to do something加先行词something？
Nobody has promised that any of you will be released yet.上句中的yet在牛津词典中a) used in negative sentences and questions to talk about sth that has not happened but that you expect to happen （用于否定句和疑问句，谈论尚未发生但可能发生的事）b (used in negative s...
It is hard work choosing the right words, but we shall be rewarded by the satisfaction that finding them brings.老师，请问这里that ，finding ，them，brings，分别做什么成分？