If I see an article advertised, it is the surest proof I know that the article does what is claimed for it, and that it is good value.
What does the word "it" refer to? Is the word "it" a "dummy subject"?
If I see an article advertised, it is the surest proof I know that the article does what is claimed for it, and that it is good value.
What does the word "it" refer to? Is the word "it" a "dummy subject"?