I'm flying home from LHR soon and am playing on bringing alcohol quantities over the 1L duty free limit (3x750mL beer + 1L scotch). Before I had GE, I declared it on the landing card and was never charged duty. Now that I have GE, I want to be sure to follow the rules. I've only used GE a few times since I got it and don't recall a question on alcohol. Is there a generic "I have goods to declare" question? I can't remember specifics about what was asked at the kiosk.

I figure worst case I get a receipt without an X and insist I talk to a CBP agent anyway.