Correct Answer: A

Rationale: The word 'flagrant' in option A is the most appropriate choice for the blank because it conveys the idea of errors that are glaringly obvious and inexcusable. In this context, the research paper is described as being 'riddled with errors,' suggesting a significant amount of mistakes that stand out and are severe. Choice B, 'cursory,' meaning superficial, does not accurately describe the seriousness of the errors. Choice C, 'innocuous,' meaning harmless, is the opposite of what is implied by the sentence. Choice D, 'meticulous,' meaning carefully detailed, is the opposite of what is needed to describe errors in this context.

Correct Answer: C

Rationale: The correct answer is C: Metaphor. The statement 'His words were a dagger to my heart' is a metaphor. A metaphor directly compares two unlike things by stating that one thing is another. In this case, the pain caused by his words is compared to a physical object, a dagger, emphasizing the intensity of the emotional impact. Choice A, Metonymy, is incorrect as metonymy involves substituting the name of one object with another closely related object. Choice B, Simile, is incorrect as a simile compares two things using 'like' or 'as,' which is not present in the given statement. Choice D, Hyperbole, is incorrect as hyperbole involves exaggeration for emphasis, which is not the case in the given statement.

Correct Answer: B

Rationale: The correct answer is 'B: 'that won the award.' A relative clause provides additional information about a noun in the sentence. In this case, 'that won the award' is the relative clause specifying which book out of all books is being referred to. It is essential to recognize and understand relative clauses for better comprehension of sentence structures. Choice A ('The book') is the main noun phrase and not a relative clause. Choice C ('was a bestseller') is the main clause of the sentence, not a relative clause. Choice D ('award') is a noun but not a relative clause as it does not provide additional information about a noun in the sentence.

Correct Answer: D

Rationale: The phrase 'a bold new world' is a metaphor. Metaphors make direct comparisons between two unlike things without using 'like' or 'as.' In this case, 'a bold new world' is not meant to be taken literally but is used to convey the idea of a fresh, innovative, and adventurous situation. It goes beyond a mere exaggeration (hyperbole), a contradictory phrase (oxymoron), or a comparison using 'like' or 'as' (simile), making 'metaphor' the correct choice in this context.

Correct Answer: B

Rationale: The clause 'When the clock struck midnight' is a subordinate clause because it does not express a complete thought on its own and depends on the main clause 'the magic began' to form a complete sentence. Subordinate clauses typically begin with subordinating conjunctions like 'when,' 'if,' 'because,' etc., and serve to provide additional information or context to the main clause. Choice A, 'Main clause,' is incorrect because the highlighted clause is not the primary clause that provides the main idea. Choice C, 'Appositive clause,' is incorrect as an appositive clause renames or explains a noun in the sentence, which is not the case here. Choice D, 'Noun clause,' is incorrect as a noun clause functions as a noun within a sentence, and the highlighted clause does not act as a noun but rather as a dependent clause providing contextual information.