Well, there is actually a problem with this question. The subject does the action, and the object receives the action. Every sentence must have a subject BUT many sentences don't have objects. In fact, your example sentences have subjects but the verbs do not have objects. "Live" and "go" are called "intransitive verbs," which means verbs that do not have objects.
Here are some sentences that have both subjects and objects.
Tom is eating cake. (subject = Tom; object = cake)
You should wear warm clothes today. (subject = you; object = warm clothes)
Mark never listens to the teacher. (subject = Mark; object = the teacher)
Here's how to find the object in a sentence. The object is the answer to a WHAT or WHO question.
Tom is eating cake. (WHAT is Tom eating? Cake.)
Mark never listens to the teacher. (WHO does Mark never listen to? The teacher.)
