Correct Answer: B

Rationale: In the sentence provided, 'Singing' is a gerund, which is a verb form ending in -ing that functions as a noun. It represents the action of singing, but in this context, it acts as the subject of the sentence. Therefore, 'Noun' is the correct answer. 'Verb' (choice A) is incorrect because while gerunds are verb forms, in this sentence, 'Singing' is not acting as a verb. 'Adjective' (choice C) is incorrect as it describes a noun, which is not the case here. 'Pronoun' (choice D) is also incorrect as 'Singing' does not replace a noun in this sentence.

Correct Answer: A

Rationale: Proofreading is an essential part of the last step in the writing process. During proofreading, you carefully review your written work to correct errors in grammar, punctuation, spelling, and formatting. This step ensures that your writing is polished and error-free before submission. Brainstorming, citing primary sources, and identifying a thesis are typically parts of the earlier stages of the writing process. Brainstorming involves generating ideas, citing primary sources is about researching and providing evidence, and identifying a thesis is establishing the main argument or focus of your writing.

Correct Answer: B

Rationale: 'Aisle' is the correct answer. A homophone is a word that is pronounced the same as another word but has a different meaning or spelling. In this sentence, 'I'll' is a homophone of 'aisle' as they sound the same but have distinct definitions and spellings. Choices A, C, and D do not fit the criteria of being homophones of 'I'll'.

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.

Correct Answer: C

Rationale: The correct answer is 'C: imitate.' In the sentence, it is explicitly stated that Felicia would often imitate her big sister, which directly relates to the meaning of 'emulate' as to copy or imitate someone else. 'Tried' (choice A) does not provide a direct connection to the definition of 'emulate.' 'Often' (choice B) and 'way' (choice D) are not directly associated with the act of imitating or copying, making them less relevant context clues for defining 'emulate.'