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.

Correct Answer: D

Rationale: The word 'their' is the best substitute for the underlined words in the sentence because it refers to Stu's roommates in a possessive form, indicating that the housekeeping belongs to them. 'His' (Choice A) refers to Stu, not the roommates. 'Hers' (Choice B) is incorrect as it refers to a female possessive form. 'Them' (Choice C) is a pronoun for a group of people but does not show possession, making it unsuitable in this context.

Correct Answer: A

Rationale: The word 'iterate' is not spelled correctly in the sentence. The correct word that should be used here is 'itinerant,' which means constantly traveling from place to place, especially for work. In this context, 'iterate' does not fit as it means to repeat a process or utterance. 'Continually' is spelled correctly and means happening without interruption. 'Within' and 'district' are also spelled correctly and are used appropriately in the sentence. Therefore, choice A is the correct answer.

Correct Answer: C

Rationale: The word 'datum' is singular, and the correct plural form of 'datum' is 'data.' Therefore, the sentence should use 'data' instead of 'datum' to be grammatically correct. In the sentence provided, 'datum' should be replaced with 'data' to maintain proper grammar and syntax. Choices A, B, and D are used correctly in the sentence, so they are not the correct answer.

Correct Answer: B

Rationale: The correct pronouns to use as objects of the verb 'told' are 'her' and 'me.' Therefore, the grammatically correct sentence is: 'Dr. Chu told her and me to take a break for lunch.' 'Her' is used as the object form of 'she,' and 'me' is the object form of 'I' in this context. Choice A is incorrect because 'me' should come before 'her' in the sentence. Choice C is a duplicate of the correct answer. Choice D is incorrect because 'she' should be 'her' and 'I' should be 'me' to function as objects in the sentence.