It was the worst day of my life. He was the best friend I ever had. Pronoun for topic doesn't stand alone. Rock music has advantages over classical music. People should stop eating animals.
Republicans are too concerned about taxes.
It is better for people to marry after the age of thirty. Japanese cars are made better than American cars. The day my husband died was the worst day of my life. Joshua Brown was the best friend I ever had. The breakdown of a good paragraph is the same as the breakdown of a good essay, and vice versa.