Which word is used incorrectly in the following sentence? He received an oral dose initially, followed by an IV drip.

Correct Answer: C

Rationale: The word 'initial' is used incorrectly in the sentence. The correct word that should be used here is 'initially.' 'Initially' is an adverb that is used to indicate the beginning or starting point of an action, while 'initial' is an adjective that describes something as happening at the beginning of a process. In this context, the correct usage would be 'He received an oral dose initially, followed by an IV drip.' The other choices ('received,' 'dose,' and 'followed') are used correctly in the sentence and do not need any corrections.

Correct Answer: B

Rationale: The sentence is written in the first-person point of view, so the appropriate pronoun to use as a substitute for 'Francesca, Bill, and I' would be 'we.' This choice maintains the correct subject-verb agreement and ensures consistency in the sentence structure by keeping the pronoun in the nominative case. Choice A, 'They,' is incorrect as it changes the subject of the sentence, leading to a lack of agreement between the pronoun and the verb. Choices C and D, 'Them' and 'Us,' are both objective pronouns and do not fit the role of the subject in this sentence.

Correct Answer: A

Rationale: The correct punctuation needed in the sentence is a period. A period is used to indicate the end of a sentence. In this case, the sentence 'After you complete your rounds, please check in at the station.' is a complete thought and requires a period at the end to show that it is a complete sentence. The other choices are incorrect because a comma would not be suitable at the end of a sentence, a colon is used to introduce a list or an explanation, and a semicolon is used to connect two closely related independent clauses.

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 phrase 'as long as' is used to indicate a condition that needs to be met for the main clause to happen. In this sentence, the radiology department sends Troy to pick up lunch only if it isn't too busy at the office, so 'as long as' is the most suitable phrase to convey this conditional relationship. Choice B, 'as if,' implies a hypothetical comparison rather than a condition. Choice C, 'after,' suggests a sequence of events rather than a condition. Choice D, 'unless,' introduces a negative condition which does not fit the context of the sentence.