Correct Answer: B

Rationale: The correct answer is an exclamation mark because it is used to convey strong emotion or excitement, which is appropriate for the sentence. A comma is not suitable here as it does not convey the level of excitement expressed in the sentence. A semicolon is used to join independent clauses or separate items in a list, which is not required in this context. A question mark would be incorrect as the statement is not a question but rather an expression of excitement.

Correct Answer: B

Rationale: The correct answer is B. In this context, 'peaked' should be 'peeked,' meaning to take a quick look. The other choices are incorrect: A is wrong because 'sheer' is the correct term referring to the absolute or complete number of people; C is incorrect as 'through' is the right term indicating looking by going across something; D is inaccurate as 'scene' is the correct term for a part of a play or film.

Correct Answer: C

Rationale: Option C is a compound sentence because it consists of two independent clauses joined by a coordinating conjunction ('and then'). The first independent clause is 'Alex and Shane spent the morning coloring,' and the second independent clause is 'they took a walk down to the park.' Choices A, B, and D are not compound sentences. In choice A, although there are two actions mentioned, they are not independent clauses; they are part of a single sentence. Choice B is a complex sentence with a dependent clause ('After coloring all morning') and an independent clause. Choice D is a complex sentence with a compound predicate ('After coloring all morning and spending part of the day at the park') followed by an independent clause.

Correct Answer: D

Rationale: The correct answer is D. The passage's descriptive and narrative style, focusing on character and setting details, suggests that the writer is an author of literature. Choice A is incorrect because there is no indication of a business environment or professional context in the passage. Choice B is incorrect as the passage does not align with the technical or formal language typical of scientific journals. Choice C is incorrect as the passage does not reflect the style or content common in student papers, which are usually more structured and formal.

Correct Answer: A

Rationale: Choice A, 'I disagree with the argument about contract workers having greater freedom,' is the correct answer. This sentence rephrases the original statement in a more formal and respectful tone, which is suitable for formal writing. Choice B is too direct and lacks formality. Choice C does not address the argument directly and poses a question instead of providing a formal statement. Choice D is dismissive and does not offer a formal rewrite of the original sentence.