1. The word voice, when it is used as a verb, means "to speak out loud." Explain how this word is changed by the addition of the prefix un- and the
suffix -ed.
(My perspective grade 10 volume 1 “house taken over” word study pg.46)

Explanation:

There's something very odd about the way you are defining voice, especially if it is a school text. Usually it is about active or passive.

is an example of active and passive (see below).

But to use it as you have, unspeak is not a word. Sorry it really is a word. It means to take back what you have just said. The word is archaic (it is no longer in use).

The proper past tense of speak is spoken. It is not correct to use speaked. My spell check has underlined both words (unspeak and speaked) which means it doesn't think they are words, or nothing it knows.

Finally voice.

Passive voice the subject is acted upon by the object. The mouse was eaten by the cat. Mouse is subject. Cat isn't.

Active voice. the subject does the acting. The cat ate the mouse. The cat is doing the acting.

the speech this question is referring to is president kennedy's special message to the congress on urgent national needs, may 25, 1961

kennedy responds in a very direct and concrete way to those thinking that communism is a positive system:

"yet their aggression is more often concealed than open. they have fired no missiles; and their troops are seldom seen. they send arms, agitators, aid, technicians and propaganda to every troubled area. but where fighting is required, it is usually done by others--by guerrillas striking at night, by assassins striking alone--assassins who have taken the lives of four thousand civil officers in the last twelve months in vietnam alone--by subversives and saboteurs and insurrectionists, who in some cases control whole areas inside of independent nations." (kennedy)

president kennedy presents communism as cowardly, as a hidden and treacherous weapon that strikes from the shadows like thieves, he represents the system as not even being capable of showing and open and overt attack or confrontation. to finish up the response, he expresses that the system attacks even a country's idependence and freedom.

i would pick a. i think this is more of a personal question though.