If it ______for his invitation the other day, I should not be here now.
had not been
should not be
were not to be
should not have been
— Did you know any French before you arrived in Washington? — Never ______ it, actually.
Only after her mother came to help her for the first few months _____ to begin her propjet.
At no time the rules of the game. It was unfair to punish them.
—Is everyone here? —Not yet. Look, there _______ the rest of our guests!
_______ about the economic crisis that he decided to look for more information about it.