21. Cerebral
22. Prowess
23. Petulant
24. Scrutinized
25. Blathering
The correct answer of the given question above would be option C. The sentence that is inverted with the subject underlined is: There was a big group here last night. (Group is underlined.) The subject of this sentence is the word "group".
Did our teacher say the due date had been extended?
The right answer is <span>4. Tear down the wall and get closer to his neighbor.
The speaker tries to persuade his neighbor to put the wall down, to no avail. He realizes that the two of them are related as human beings. He tries to communicate, but the wall is a symbol of silence and isolation. The speaker feels that building walls is unnatural. "</span>Something there is that doesn’t love a wall, <span>That wants it down."</span>
The correct answer is D. Elion and her colleagues were responsible for developing important drugs.
Explanation
The statement that best summarizes the main idea of the extract is D. "Elion and his colleagues were responsible for the development of important drugs." This can be affirmed because in the extract the author says that "Elion joined the Burroughs Wellcome Laboratories" clarifying that Elion began working in laboratories where medicines were manufactured. Later, the author refers that "Elion and Hitchings developed a variety of new drugs that were effective against leukemia, autoimmune disorders, urinary tract infections, gout, malaria, and viral herpes," in this part of the Extract is where it is directly mentioned what Elión and Hitchings did when they worked in the laboratory. Additionally, some of the diseases that were cured with the medicines they had developed such as leukemia, gout, malaria, among others, are mentioned.
