Answer:
anaphora
Rhetorical devices are abundant in the “I Have A Dream” speech. Most noticeable, and frequently used, is anaphora, which our dictionary defines as “the repetition of a word or phrase at the beginning of successive clauses”: Now is the time to make real the promises of democracy.
Explanation:
I could topple over those stacks of books if you don't move them!
Where are the sentences provided?
Whom did you visit in Mexico last summer is the correct answer. You should choose <em>whom </em>because that is the object, whereas <em>who </em>would be a subject pronoun.