Correct Answer: A

Rationale: Option A correctly uses the passive voice by placing the emphasis on the object (letter) that received the action (was written) rather than the subject performing the action. The phrase 'by Mary' indicates the agent who performed the action, making it a clear example of the passive voice structure. Choices B, C, and D are all in the active voice, where the subject performs the action directly on the object. In the context of identifying the correct usage of the passive voice, option A stands out as the only suitable example.

Correct Answer: C

Rationale: The main function of transition words and phrases in writing is to connect ideas smoothly and guide the reader's flow. They serve to establish logical relationships between different parts of the text, ensuring coherence and facilitating a clear progression of thoughts. Choice A is incorrect as transition words are meant to enhance clarity and coherence, not add unnecessary embellishments. Choice B is incorrect because while transition words can provide emphasis, their primary role is in facilitating the flow of ideas. Choice D is also incorrect as introducing opposing viewpoints and counterarguments is typically done through different means such as specific phrases or signal words.

Correct Answer: B

Rationale: The word 'meticulous' is synonymous with being very careful and detail-oriented. It describes someone who pays close attention to detail and is thorough in their work. 'Precise' is the best choice among the options as it conveys accuracy and exactness, which align with the nature of someone who is meticulous. Choice A, 'careless,' is the opposite of meticulous, indicating a lack of attention to detail. Choice C, 'indifferent,' suggests a lack of interest or concern, which is not related to being meticulous. Choice D, 'enthusiastic,' conveys a sense of excitement and passion rather than the precision and carefulness associated with being meticulous.

Correct Answer: A

Rationale: Option A correctly uses the comparative degree by comparing the quality of two movies with the word 'better.' This sentence demonstrates a comparison between two items in terms of quality, making it the correct use of the comparative degree of an adjective. Choice B uses the superlative degree ('tallest') instead of the comparative degree. Choice C uses the comparative degree correctly but with an adverb ('harder') instead of an adjective. Choice D uses the comparative degree correctly, but it compares the temperature of two coffees rather than the quality of the coffee.

Correct Answer: A

Rationale: The correct answer is A, 'joyous.' 'Pensive' means engaged in deep or serious thought, often with a hint of sadness. The antonym 'joyous' represents a state of great happiness and delight, contrasting with the contemplative and somewhat melancholic nature of being pensive. Choices B, C, and D are incorrect. 'Thoughtful' is not an antonym but rather a synonym, meaning showing consideration or careful thought. 'Curious' and 'introspective' are also not antonyms; 'curious' means eager to know or learn something, and 'introspective' means examining one's own thoughts and feelings.