Which of the following sentences is grammatically correct?

Correct Answer: C

Rationale: The correct structure is 'whom to hold responsible' as 'whom' is the object of the verb 'to hold.' In choice A, 'who' should be 'whom' to indicate the object of the verb. Choice B is incorrect as 'whom' is incorrectly placed before 'was responsible.' Choice D is also incorrect due to the awkward phrasing and the use of 'on' which is unnecessary.

Correct Answer: C

Rationale: The correct answer is C. Taking good notes is not a hands-on activity; it is a cognitive skill that does not involve physical interaction or manipulation. Choices A, B, and D all involve physical activities that directly engage a child's hands and body, supporting the thesis about the importance of hands-on learning in early education. Building structures with blocks, using modeling clay, and playing hopscotch all require physical manipulation and engagement, which are key aspects of hands-on learning.

Correct Answer: A

Rationale: The correct answer is A. In this sentence, the subject 'all of the board members' is plural, and the verb 'are' agrees with it. In choice B, 'each of the students' is singular, so the verb should be 'was' instead of 'were.' Choice C should use 'is' instead of 'are' since 'neither of the children' is singular. In choice D, 'any of the brownie recipes' is singular, so 'is' should be used instead of 'are.' Therefore, only choice A demonstrates proper subject-verb agreement.

Correct Answer: D

Rationale: In a formal debate, it is essential to maintain a respectful and professional tone when expressing opinions. Choice D uses hyperbolic language like 'height of hypocrisy,' which is inappropriate for a formal setting. It is important to avoid personal attacks or extreme statements that can detract from the credibility of the argument. Choices A, B, and C present opinions in a more neutral and respectful manner, focusing on discussing the topic without resorting to emotional or accusatory language. Therefore, choice D is the correct answer as it does not align with the standards of formal debate etiquette.

Correct Answer: D

Rationale: A simple sentence contains only one independent clause. Choice D, 'Phillippa and Primula walked the dog and gave the dog a bath,' is a simple sentence as it consists of a single subject (Phillippa and Primula) and predicate (walked the dog and gave the dog a bath). Choices A, B, and C contain multiple clauses or conjunctions that create compound sentences, making them more complex and not fitting the criteria of a simple sentence.