Without a doubt you return each and every questionnaire regardless of your interest in them at the time you receive.
Too many players think that they will just attend the school of their choice--it doesnt happen that way.
The school you end up playing for may have never been on your wish list but they came to you and because of their interest in you, not your interest in them, offered you a scholarship. This is especially so if it fits the parents pocketbook
On the dark side of it all this questionnaire, and I truly hope it wont be the case, may be the only one you get----
Keep all options open as long as you can--do not shut any doors