这句话当中的it是作什么语法成份?
问题描述：
这句话当中的it是作什么语法成份?
In England,it is not only the rich who can take their children to the seaside; if a fatory worker or a bus driver,a street cleaner or a waiter wants to take his wife and children to Southland ormargate,he is usually quite able to do so.
答
强调句来的