Which word is used incorrectly in the following sentence? The professor was once an intern in this hospital back in the 1980s.

Correct Answer: B

Rationale: In the given sentence, the word 'once' is used incorrectly. The original sentence implies that the professor was an intern in the hospital at a specific time in the past, not just once. The word 'formerly' would imply that the professor used to be an intern but is no longer. Therefore, 'once' is the incorrect word choice in this context. The other options ('professor,' 'intern,' 'hospital') are all used correctly in the sentence.

Correct Answer: B

Rationale: In the given sentence, the word 'once' is used incorrectly. The original sentence implies that the professor was an intern in the hospital at a specific time in the past, not just once. The word 'formerly' would imply that the professor used to be an intern but is no longer. Therefore, 'once' is the incorrect word choice in this context. The other options ('professor,' 'intern,' 'hospital') are all used correctly in the sentence.

Correct Answer: C

Rationale: The word 'therapist' in the sentence is used correctly. However, the word 'councilor' is misspelled and should be 'counselor' to refer to a mental health professional providing therapy services. The correct term should have an 's' after 'counselor,' making it 'counselor' instead of 'councilor.' Therefore, the word 'councilor' is the one not used correctly in the sentence.

Correct Answer: C

Rationale: The correct answer is C. The sentence requires an infinitive form of the verb 'to conduct' after the verb 'promised.' This structure is commonly used in English grammar, where the main verb 'promised' is followed by an infinitive verb form. Therefore, the sentence should read: 'The students promised to conduct themselves with quiet dignity.' Choice A ('conduct') is incorrect as it is not in the infinitive form required after 'promised.' Choice B ('conducting') is incorrect as a gerund does not fit the grammatical structure of the sentence. Choice D ('to be conducted') is incorrect as it changes the meaning of the sentence, suggesting that someone else will conduct the students, rather than the students conducting themselves.

Correct Answer: C

Rationale: In this sentence, we are looking for a pronoun that refers to more than one person. The children and 'them' performed a skit for the elderly patients. 'Them' is the correct pronoun to use in this context to indicate a group of people, which is the plural form of the pronoun. Choice A, 'he,' is singular and would not match the plural subject. Choice B, 'me,' is an object pronoun and does not fit the subject position. Choice D, 'her,' is singular and does not agree with the plural subject 'children and them.' Therefore, the correct answer is 'C: them.'

Correct Answer: C

Rationale: The phrase 'had rarely' is not used correctly in the sentence. The correct form should be 'rarely eaten' instead of 'had rarely' to convey the past tense of the children's eating habits before their hospitalization. 'Had rarely' is incorrect because it does not match the structure needed to describe the children's eating habits in the past. Choices A, B, and D are grammatically sound and fit appropriately in the sentence.

Correct Answer: A

Rationale: The correct answer is 'A - spoke to the patient's parents.' In this sentence, the past tense 'spoke' should be used to match the past tense 'had,' indicating an action that already took place. Choices B, C, and D are incorrect because they use present or future tenses, which do not match the past tense 'had' in the sentence.

Correct Answer: B

Rationale: In the sentence 'One out of four doctors,' the subject is 'One,' which is singular. Therefore, the verb that follows should also be singular. The correct verb form in this case is 'subscribes,' not 'subscribe' or any other form. This subject-verb agreement rule ensures that the sentence is grammatically correct. Choice A 'subscribe' is incorrect as it is in the plural form and does not agree with the singular subject. Choice C 'subscribing' is in the gerund form and does not function as the main verb of the sentence. Choice D 'are subscribed' is in the passive voice and does not match the active voice required in this sentence.

Correct Answer: B

Rationale: The word 'infer' is used incorrectly in the sentence. 'Infer' means to deduce or conclude something based on evidence and reasoning, while in the sentence, the speaker is actually asking if the grimace suggests that the person hated the performance. The correct word that should be used in this context is 'imply' or 'suggest.' 'Grimace' (choice A), 'loathed' (choice C), and 'performance' (choice D) are all used appropriately in the sentence.