Answer:
You
Step-by-step explanation:
A subject is a noun or pronoun that performs the main action in a sentence or the one that is mainly being described or dealt with. In the sentence “Did you see the movie at the cineplex or the new Odeon?,” “you” is the subject because it is the one that performs the main action of seeing. The rest of the sentence, on the other hand, is the predicate, which is the part that states something about the subject.