Using the passive voice can be complicated, but also very important for cohesive and coherent academic writing.  To revise how to build active and passive sentences in different tenses and when to employ the passive voice, check out this article.

In his iconic speech at the Lincoln Memorial for the 1963 March on Washington for Jobs and Freedom, King urged America to „make real the promises of democracy.“ He merged together parts of his earlier speeches to underline both the need for substantial change and the potential for hope in the US-American society.