Every complete sentence needs a subject and a predicate (verb).
A sentence can have more than one subject
and/or more than one verb.
("Plural" means more than one.)
A sentence can also contain a direct object.
A is the thing that is being acted upon by the subject - it receives the action of the verb.
There can also be an indirect object.
Definition: A direct object is a noun or a pronoun that the verb in the sentence does something to.