What does the underlined word in the following sentence mean? 'The students' excitement about the beginning of summer vacation pervaded the whole classroom.'

Correct Answer: B

Rationale: The underlined word 'pervaded' in the sentence means 'spread throughout.' In this context, it conveys that the excitement of the students was felt and noticed everywhere in the classroom. Choice A, 'stood at attention,' does not align with the meaning of 'pervaded.' Choice C, 'explained,' and choice D, 'took note,' are also unrelated to the concept of the excitement spreading throughout the entire classroom.

Correct Answer: C

Rationale: The correct answer is C, complex. This sentence contains an independent clause ('Bess loves art') and a dependent clause ('who can draw beautifully'). The dependent clause relies on the independent clause for context and cannot stand alone as a complete sentence. The connection between the clauses is established by the relative pronoun 'who.' Choices A, B, and D are incorrect. It is not a compound-complex sentence as it lacks multiple independent clauses and a dependent clause, respectively. It is not a compound sentence since it does not have two independent clauses joined by a coordinating conjunction. Lastly, it is not a simple sentence because it contains both an independent and a dependent clause, making it more complex than a simple sentence.

Correct Answer: A

Rationale: The word 'perturbed' in the sentence conveys a sense of being troubled, disturbed, or bothered by something. Therefore, the most suitable substitution is 'bothered by.' Option A correctly captures the feeling of being unsettled due to the loud noise. Choice B, 'excited about,' does not align with the negative connotation of 'perturbed.' Choice C, 'occupied exclusively with,' introduces a different concept unrelated to feeling troubled by the noise. Choice D, 'confused by,' does not accurately reflect the feeling of being troubled or bothered by the situation described in the sentence. Thus, 'bothered by' is the most appropriate substitution in this context.

Correct Answer: B

Rationale: Option B provides a clear and grammatically correct explanation for why the majority of survivors came from first class - they were able to reach the deck fastest to get a seat on a lifeboat. The phrase 'Because of this' properly introduces the reason that follows. In Option A, a comma after 'Because' is unnecessary and disrupts the flow of the sentence. In Option C, 'Because this' is incomplete and lacks proper connection to the subsequent clause. Option D, similar to Option C, lacks clarity due to the absence of a full linking phrase. Therefore, Option B is the best choice as it conveys the explanation effectively and without grammatical errors.

Correct Answer: D

Rationale: The prefix 'aero' is derived from the Greek word 'aēr,' which means air. In words like 'aerobics' and 'aeronautics,' the prefix 'aero' refers to air-related activities or concepts. Therefore, 'air' is the correct meaning of the prefix 'aero.' Choices A, B, and C are incorrect. 'Light' does not relate to the prefix 'aero,' 'speed' and 'distance' are not associated with the concept of air as in 'aero,' making them incorrect answers.