Correct Answer: A

Rationale: All the words in the sentence are spelled correctly, including 'achievement.' There is no misspelling present. 'Greatest,' 'achievement,' and 'leader' are all spelled correctly. Option A is correct as there is no misspelled word in the sentence. Choices B, C, and D are wrong because they are correctly spelled words in the context of the sentence.

Correct Answer: D

Rationale: The correct answer is 'Anaesthetic'. 'Anaesthetic' refers to a drug that removes feeling or sensation. The prefix 'ana-' means without, and the root 'esthetic' relates to sensation or feeling. 'Hyperalgesia' refers to increased sensitivity to pain, 'Subcranial' does not relate to drugs or removing sensation, and 'Hypoglycemic' refers to low blood sugar levels, not a drug that removes feeling or sensation.

Correct Answer: B

Rationale: In the words proactive, progress, and projecting, 'pro-' is a prefix meaning 'before, forward, or front.' This prefix denotes something happening before or moving forward, as seen in 'progress' and 'projecting,' where it signifies moving ahead or progressing. Therefore, the correct answer is B. Choices A, C, and D are incorrect because 'pro-' is not a suffix, affix, or prefix that means 'good, on top of, or over,' 'after, behind, or in back of,' or 'against, under, or below' respectively. The key is to recognize the meaning of the prefix 'pro-' in the given words and associate it with concepts related to being before or moving forward.

Correct Answer: D

Rationale: The correct answer is D: 'effect; than.' In this sentence, 'effect' is the appropriate word to use as it signifies the result of increasing bus fares on ridership. Additionally, 'than' is the correct word for making a comparison. Choice A and B are incorrect as 'affect' is a verb, while 'effect' is the noun needed in this sentence. Choice C is incorrect as 'then' is used to indicate time or sequence, which is not suitable in this context.

Correct Answer: D

Rationale: The correct answer is D. The sentence should be corrected by removing the period and joining the clauses to avoid a sentence fragment. Option A is incorrect because it incorrectly separates the clauses with a comma. Option B is incorrect as it incorrectly uses a comma after 'Protesters' and lacks proper structure. Option C is incorrect as it places the subordinate clause at the beginning, which disrupts the flow of the sentence.