Introductory it as Subject
The 'be' groupThese verbs are concerned with what a situation is, seems, or becomes. All the verbs in this group are link verbs (see Chapter 5).
The word that is often omitted, as in the clause It's a pity you can't come.
be become remain seem
You can name your own price. It's almost a foregone conclusion that you'll get what you want.
It remains a subject of fascination that one family produced three exceptional writers: Charlotte, Anne, and Emily Bronte.