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 'After I finish my homework.' This is a dependent clause because it cannot stand alone as a complete sentence. It relies on the rest of the sentence for context and meaning. Choice A, 'Over the course of the day,' is a prepositional phrase, not a dependent clause. Choice C, 'I can't use my mother's car,' is an independent clause as it can function as a complete sentence on its own. Choice D, 'Through the tunnel,' is also a prepositional phrase and not a dependent clause.

Correct Answer: B

Rationale: The topic sentence in a paragraph typically introduces the main idea or topic of the paragraph. In this case, choice B correctly serves as the topic sentence by clearly stating that gingivitis is a mild form of gum disease caused by bacteria that leads to inflammation of the gums. Choices A, C, and D provide additional information that supports or follows the main idea but do not present the overarching topic of the paragraph.

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: The correct answer is 'Dyskinesia.' By breaking down the word parts, 'dys-' means difficult or abnormal, and '-kinesia' refers to movement. Therefore, 'Dyskinesia' means an abnormality of movement. Choice B, 'Hyperkinesia,' is incorrect as 'hyper-' means excessive, not abnormal. Choice C, 'Akinesia,' is incorrect as 'a-' means without, not abnormal. Choice D, 'Hypokinesia,' is incorrect as 'hypo-' means deficient, not abnormal.