The
company was the city in miniature, old and young, every race and colour, and
everyone could join in. 黑体部分作什么成分？我认为old前省略关系代词that。that先行词只能是city，所以可以省略。各位大咖专家老师怎么看？谢谢！
All they care for is to have a good time, as though to enter university
is an end in itself. They hold dances every Saturday evening or play cards in
the dormitories deep into the night, drinking and smoking heavily.in itself什么用法，修饰to enter university？
The sale of Nokiya phones approaches 450 million, almost doubled as many as the second successful manufacturer Samsung.各位大佬，这个是一个学生写的句子，请问这个句子里面的double as many as的用法对不对呢
Spinach, is in fact, one of the most nutritious vegetables.请问老师：is in fact 这里前后都使用逗号，看不懂，为什么这样使用呢？好像一般都是Spinach is, in fact, one of the most nutritious vegetables. in fact做插入语。
A sedentary lifestyle and a changing diet has doubled the number of obses Australians and trembled the army of fat children in the past decade.用and连接的并列主语后面为什么用单数动词（A and B后面用单数动词）？
...有规律还是固定用法？例如：用 to 的：give a pen to me ,show the book to me这类动词有：send, bring, sell等用for的：buy a beautiful skirt for her, play the pipa for my mother这类动词有teach, cook make, cut, draw, thank等既可以用for, 又可以用to ：sing a song to s...
Perhaps a useful way of viewing the notion of personal growth would be to picture the very large and general term "education" as being all-embracing, including as subsets within it academic and nonacademic components.红色部分没看懂，请求老师解答。
The plan needs to include Operational information such as where you business is based, who your suppliers are and the premises and equipment needed.where引导定语从句时is based需要有介词in，但我不能明白为什么where引导宾语从句时is based后面不能有介词in？请老师...
The brain is as active during REM (rapid eye movement) sleep—when most vivid dreams occur—as it is when fully awake, says Dr. Eric Nofzinger at the University of Pittsburgh,此处的as的含义是什么呢？是副词吗？
Or so the thinking has gone since the early 1980s, when juries began holding more companies liable for their customers' misfortunes.请问这里的has gone怎么翻译，go可以表开始也可以表消失是吗？