Correct Answer: C

Rationale: The sentence about the ball of wool being a sustainable resource introduces a new idea that doesn't align with the other ideas in the paragraph, which focus on relaxation and health benefits. Choices A, B, and D all relate to the positive aspects and personal experience with knitting, which are in line with the paragraph's context. Choice A expands on the benefits of knitting, choice B highlights the relaxing nature of the activity, and choice D indicates a personal benefit obtained from knitting.

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: 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 sentence 'Cooking requires a number of different skills that can be learned and practiced' effectively introduces the main idea of the paragraph, making it a strong topic sentence. Choice A is vague and does not clearly establish the central theme. Choice C focuses on a specific tool rather than the broader concept of cooking skills. Choice D is more about the process of learning a particular skill rather than encompassing the range of skills needed for cooking.