Cual de las siguientes frases requiere el uso de por?
A) I am going to dress well to impress my boyfriend.
B) I am going to study a lot to get a good grade.
C) I need to write an essay for Tuesday.
D) I studied for an hour to prepare for my exam.

For this question, it will be important to use the words "mejor" (better), "lo mejor" (the best), and "lo peor" (the worst). while "mejor" is comparative (you are comparing one thing to something else), "lo mejor" and "lo peor" are superlative (there is nothing else better or worse than what these words are describing - there is no comparison).  you could say something like: la música rap es mejor que la música clásica - que es lo peor - pero la música rock es lo mejor de todas las formas de la música (rap music is better than classical music - which is the worst - but rock music is the best out of all the forms of music).

Nunca te voy a decir que te amo- im never going to say that i love you. no hay nadie aqui- there is no one here