There is a point in the "choose the correct answer" question that goes like "
"The old man ....... to cross the crowded street."
1- has seen
2- has been seen
3- sees
4 - is being seen.
My teacher says that "has been seen" is the correct answer not "is being seen" because "seen" can't come in the present continuous, however, that's on account that "seen" here means "watch". But if "seen" means "helped" or "shown the way" can't it come in the present continuous?
Plus that if "seen" in "has been seen" means watched, then there will be no "to" and the verb "cross" will be instead crossing. But if it also means "helped" or "shown the way" then both of them are right.
So which one is right and why?