Last night Dad prepared spaghetti and a salad for supper. ? is prepared spaghetti and salad for supper the predicate?
That's part of the predicate. What are the words that tell when the action happened? They are also part of the predicate.
No, "prepared spaghetti and a salad for supper" is the subject of the sentence. The predicate is the part of the sentence that contains the verb and provides information about the subject. In this case, "Dad" is the subject and "prepared spaghetti and a salad for supper" is the information being provided about what Dad did.
No, "prepared spaghetti and salad for supper" is not the predicate. In a sentence, the predicate is the part that tells us what the subject is doing or what is happening to the subject. It typically includes the verb. In this case, "Dad" is the subject of the sentence, and "prepared" is the verb.
The complete predicate in this sentence is "prepared spaghetti and a salad for supper." It includes the verb "prepared" and the direct objects "spaghetti" and "a salad" that receive the action of the verb.