Complete subject: Steve Complete predicate: ate lunch too early. Explanation: In the given sentence, "Steve" is the subject who performed the action of "ate lunch too early." Therefore, "Steve" is the complete subject. The predicate is the part of the sentence that tells what the subject is doing. Here, the complete predicate is "ate lunch too early" which describes the action performed by the subject. Hence, the complete subject is "Steve" and the complete predicate is "ate lunch too early."