Correct Answer: D

Rationale: The correct answer is 'thought.' 'Thought' is the correct past tense form of 'think.' In this sentence, 'thought' is used to indicate that the thinking process happened in the past before deciding to major in criminal justice. Choices A, B, and C are incorrect. 'Think' is the present tense form, 'thank' is a different verb with a different meaning, and 'thinked' is not a valid past tense form of 'think.'

Correct Answer: C

Rationale: In the sentence 'The swirling snow drifted down all afternoon,' 'swirling' is functioning as an adjective. Adjectives modify or describe nouns, and in this case, 'swirling' describes the noun 'snow.' The word 'swirling' is giving more information about the nature or quality of the snow, indicating that it is moving in a circular motion. Choices A, B, and D are incorrect. An interjection is a word or phrase used to express strong emotions or sentiments, which 'swirling' does not do in this context. An article is a determiner that introduces a noun, and 'swirling' is not serving this function. An adverb typically modifies a verb, adjective, or another adverb, but in this sentence, 'swirling' is not modifying a verb, making it an incorrect choice.

Correct Answer: A

Rationale: The correct answer is A: "When a researcher submits a paper for publication in a scientific journal, the editors give it to other scientists to review." This option provides a clear and concise way to combine the two sentences. It maintains the logical sequence of events: first, the researcher submits the paper, and then the editors pass it to other scientists for review. Option B introduces unnecessary complexity by separating the actions in a less fluid manner. Option C confuses the sequence of events by implying that the scientists review the paper because the editors already gave it to them, which is not the intended order of actions. Option D also disrupts the chronological order of events by placing the scientists' review before the editors give them the paper, making it less clear and accurate compared to the correct answer, option A.

Correct Answer: C

Rationale: The sentence discusses evidence and clinical trials related to a specific therapy, indicating a scientific context. Scientific journal articles are known for presenting research findings, discussing evidence, and proposing further studies, making them the most suitable source for this type of information. Choices A, B, and D are incorrect because a motivational speech is more focused on inspiring and encouraging, a business memo typically deals with internal communication in organizations, and a personal blog reflects individual opinions or experiences, none of which align with the content and tone of the sentence provided.

Correct Answer: C

Rationale: The correct answer is "C: in." A preposition is a word that shows the relationship of a noun or pronoun to another word in the sentence. In this sentence, 'in' is the preposition, indicating the location of the heat relative to the room. Choices A, B, and D are not prepositions. 'It' is a pronoun, 'hot' is an adjective, and 'that' is a demonstrative pronoun in this context, not a preposition.