Identify the preposition in the following sentence: It's really hot in that room.

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.

Correct Answer: B

Rationale: The main purpose of a thesis statement is to clearly state the main idea or argument of the essay. It serves as a roadmap for the reader, outlining the central point that the essay will address. Choice A, 'To summarize the essay,' is incorrect because while a thesis statement does provide a concise summary of the main point, its primary function is to present the main idea, not summarize the entire essay. Choice C, 'To ask a question,' is incorrect as a thesis statement is a declarative statement that asserts a position or argument rather than posing a question. Choice D, 'To provide evidence,' is incorrect because a thesis statement does not offer evidence but rather sets the direction and focus for the evidence that will be presented in the essay.

Correct Answer: A

Rationale: The correct answer is 'questionnaire.' A questionnaire is a set of questions used for gathering information. The incorrect choices B, C, and D have misspellings of the word 'questionnaire.' 'Questionaire,' 'questionnare,' and 'questionairre' are not correct spellings and may lead to confusion or misunderstanding. It is essential to use the correct spelling to ensure clear communication in healthcare settings.

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 informal tone and casual language, such as 'hey wait' and 'what are you up to tonight, anyways?' suggest that the speaker is a friend inquiring about the plans of another friend. This type of conversation is typical among peers and not in a professional setting, ruling out choices A and D. Choice B is incorrect because there is no indication of a debate or formal speech practice in the conversation.

Correct Answer: B

Rationale: The correct answer is B: 'The tests were graded by the teacher.' This sentence is an example of passive voice, where the subject receives the action. In passive voice construction, the focus is on the receiver of the action rather than the doer. Choices A, C, and D are not in passive voice. Choice A 'The teacher graded the tests' is in active voice where the subject (teacher) performs the action. Choice C 'The students took the test' is also in active voice with the subject (students) carrying out the action. Choice D 'The test was difficult' is in passive voice but does not exemplify the subject receiving an action performed by an agent, which is a defining characteristic of passive voice.

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: B

Rationale: The correct answer is B: Brainstorm interesting topics and ideas. Brainstorming is an essential initial step in the creative process of generating ideas for a group presentation. It allows team members to freely share thoughts, explore various angles, and come up with innovative concepts. Choice A, interviewing sources, typically comes after brainstorming to gather information. Choice C, developing an organized outline, usually follows brainstorming to structure the presentation content. Choice D, citing sources, is important but is not the first step in the idea generation process.

Correct Answer: B

Rationale: The correct answer is B: 'It's a beautiful day outside.' 'It's' is the contraction for 'it is.' Choice A is incorrect as it should be 'It's' instead of 'Its.' Choice C is incorrect as the apostrophe should come before the 's' in the contraction. Choice D is incorrect as the use of 'is'' is grammatically incorrect.