Correct Answer: C

Rationale: When addressing a formal letter to the school board, 'Dear Sir and/or Ma'am' is the most appropriate greeting as it shows respect and professionalism. Choice A, 'Dearest School Board,' is too informal and overly personal for a professional communication. Choice B, 'To Whom It May Concern,' is more suitable for general inquiries when the recipient is unknown, not for addressing a specific group like a school board. Choice D, 'Hello all,' is too casual and lacks the formality required when addressing a school board.

Correct Answer: B

Rationale: In academic writing, transition sentences are used to connect ideas within a paragraph. Phrases like 'In the same way,' 'Another reason for this is,' and 'As a result' are commonly used to transition between different points. However, 'Research proves that' is more indicative of a factual statement rather than a transitional phrase. It presents information rather than smoothly transitioning between ideas, making it the correct choice as it does not fit the typical structure and function of a transition sentence.

Correct Answer: C

Rationale: The correct chronological order for the sentences within a paragraph should follow the sequence of events logically. In this case, 'I, II, III, IV' is the correct order. Sentence I usually sets the stage or introduces the main idea, followed by sentence II, which provides additional information. Sentence III usually presents the climax or a turning point, leading to sentence IV, which wraps up the paragraph. Choice C, 'I, II, III, IV,' maintains this logical progression, making it the best chronological order. Choices A, B, and D do not follow a coherent chronological sequence and disrupt the flow of events within the paragraph.

Correct Answer: C

Rationale: Choice C, 'Other historians claim that the symbolism in the fairy tale is more about nature and the shifting seasons,' demonstrates the correct use of an apostrophe. The apostrophe in 'season's' indicates the possessive form of 'seasons,' correctly showing ownership by the shifting seasons. Choices A, B, and D do not showcase the correct use of an apostrophe. Choice A incorrectly uses 'fairy's' instead of 'fairies,' which is the plural form of 'fairy.' Choice B uses 'historians'' which is correct for the possessive form but does not relate to the use of an apostrophe. Choice D correctly uses 'Tchaikovsky's' to indicate possession by Tchaikovsky.

Correct Answer: D

Rationale: The correct answer is D. Adding the suffix '-ous' to 'fame' changes it to an adjective, 'famous,' altering the meaning of the word. Choice A is incorrect because 'fortification' is derived from 'fort' but does not change its meaning significantly. Choice B is incorrect as 'dismount' is related to 'mount' but signifies the opposite action rather than a change in meaning. Choice C is incorrect as 'fleeing' is simply the present participle form of 'flee' and does not alter its fundamental meaning.