The answer is A just took the test :)))
Churchill asks a rhetorical question so that he can then express what he sees as the goal that must be shared by all free nations: the security, safety, and freedom of everyone in the entire world.
Which one of what? You don't say the choices:)
Scientists are searching for planets that are similar to Earth because when resources are used up, we can resort to another planet. Whether it be to travel to live at a different planet or to collect resources from there, either option would be nice for a last resort.
Answer:
D) Most people figured that Columbus discovered America, made friends with the Indians, and then told everyone else about this land.
Explanation:
Revision of any text or passage is need for a number of reasons, ranging from a simple grammar mistake to making the paper more precise, focused, structured, etc. The revision also allows for improved analytical skills, challenging one's own ideas, more strengthened argument, etc.
Among the given sentences, the one that needs to be revised is sentence D. Looking at the words used in this particular sentence, it is evident that the words are too informal, be it using<em> "most people figured", "made friends", or "told everyone else"</em>. They make the sentence too simple, too friendly, something one does with a close friend or relative. If these words are revised with words like 'most people believed', 'formed close relationship/ befriended', or 'revealed to everyone', then that makes the sentence seem more formal.
Thus, the correct answer is option D.