After return to my home from school, I started to cook supper.这里的 return 用 returning 的情况常见，但是 return 本是也有名词词性，那么，如上句直接在 after 后用 return 也可以吧？需要专家老师的指导。
以下两个句子的结构是我的分析，请老师帮忙看看我分析是否有误，谢谢！①But he(主语） says（谓语）he does think（宾） that the study should encourage parents to look more closely at the types of games their kids are playing（宾）.②Researchers（主语） ...
...thing people are supposed to need in a proletarian paradise.请问，这里的not something到底是什么成分? 是否是加了否定词的同位语，修饰private charity?又或=which is not something...的非限制性定从？如果是，为什么可以省略which is呢？是报刊英语的习...
The transition will be politically hard in places that have invested a lot in being covid-free.请问老师这里的being covid-free是动名词短语作in的宾语吧?我疑惑的是为什么要用being呢，不可以invested a lot in covid-free places吗？
...be in a university registrar's office with your father taking charge.这里的your father
taking charge是什么语法结构或用法呢？就是一个名词或代词加现在分词的这种表达。2.I am as old as，if not older than，most faculty
members.if not older than是作为插入语，插...
...间出现了I do not know why he said this......用了一般现在时。我的理解是：如果用一般过去时I DID not know why he said this （或也可why he had said this 吧？），则含义是：当时我不知道...而现在采用了一般现在时I do not know why he said this...含义...
以下是柯林斯词典关于 downward 的例句，我感觉都可以换成 down。难道是 downward 的方向感更强？此外，类似 fell down from 的短语可以换成 fell downward from 么？ADV If you move or look downward, you move or look toward the ground or a lower level. ...
......too结构刘老师在前面帖子中讲过是属于否定转移。下面的这个句子的翻译还是不太理解：You can’t be too careful in doing the experiments. 做实验你越仔细越好。not否定too careful，表示“不太仔细”，你做实验不太仔细？咋感觉和原来...