I may assert th' Eternal Providence, and justifie the wayes of God to men.
Answer: 1. Brutus thinks power will change Caesar. 2. He thinks that the people of Rome desire to finish him as well because of a letter that he receives.
Explanation: Brutus claims not to have any reason to finish Caesar off. However, he discreetly implies "reasonable" facts that would make it a good idea. He presumes that, although Caesar hasn't portrayed ambitious behaviors, power could corrupt his mind. Furthermore, due to a letter he receives in which he is accused of sleeping in Rome's reign, he assumes that the people from Rome wants Caesar's life to end as well.
The subject does agree with the verb because the subject is students and the verb is use. The subject is plural and the verb is singular.