Correct Answer: C

Rationale: The word 'study' is used incorrectly in the sentence. The correct verb form should be 'studies' to match the subject 'Sidney,' which is singular. The sentence should read, 'Jack practices piano while Sidney studies for the exam.' The other choices ('practices,' 'while,' and 'exam') are used appropriately in the sentence.

Correct Answer: A

Rationale: The correct preposition to use in this sentence is 'with.' The sentence should read: 'Do not be afraid to consult with your peers.' In this context, 'with' is the appropriate preposition to indicate collaborating or seeking advice from your peers. The other prepositions ('from,' 'by,' 'in') do not convey the intended meaning of seeking advice or collaborating with your peers in this context.

Correct Answer: D

Rationale: The phrase 'that is long overdue' is misplaced in the sentence as it disrupts the flow. Placing it after 'The book' would enhance clarity and coherence. This adjustment ensures the phrase directly describes the book rather than the school, improving the logical and coherent connection within the sentence structure. Choices A, B, and C are correctly positioned and contribute to a clear and coherent sentence about the location of the book.

Correct Answer: B

Rationale: The word 'stationary' in the sentence should be spelled as 'stationary.' 'Stationery' refers to writing paper and other office supplies, while 'stationary' means not moving or still. In this context, the correct word should be 'stationary' to describe the chairs that are not moving.

Correct Answer: A

Rationale: The word 'counselor' is spelled correctly in the sentence. The word 'advise' in the sentence should be spelled 'advice.' 'Advise' is a verb meaning to offer suggestions, while 'advice' is a noun referring to recommendations or guidance given by someone. In this context, the correct word to use is 'advice,' as the sentence implies the counselor's guidance rather than her action of advising. Choice A is the correct answer as it is the only word that is not spelled correctly in the given sentence.