HESI A2 Grammar Practice Exam

Correct Answer: B

Rationale: The correct punctuation needed in the sentence is a comma. A comma is used to separate two independent clauses when they are joined by a coordinating conjunction (such as "and" in this case). In the given sentence, "In addition to the hospital's regularly scheduled festivities" and "the custodians celebrate with a party of their own" are two independent clauses joined by "In addition to." Therefore, a comma is needed before the coordinating conjunction "In addition to" to make the sentence grammatically correct. Choice A (Period) is incorrect because a period would create two separate sentences, which is not the intended structure. Choice C (Apostrophe) is incorrect as there is no possessive form being used in the sentence. Choice D (Semicolon) is incorrect as a semicolon is not necessary to join these two independent clauses when a coordinating conjunction is present.

Correct Answer: C

Rationale: Rationale: The correct answer is C because "promised to conduct" is the correct phrasing to convey the intended meaning of the sentence. The verb "promised" should be followed by the infinitive form "to conduct" to indicate the action the students committed to doing. Summary of other choices: A: "conduct" is incorrect as it does not follow the structure of the sentence. B: "conducting" is incorrect as it is a present participle and does not fit the context of the sentence. D: "to be conducted" is incorrect as it changes the meaning of the sentence, suggesting that the students would be the ones being conducted.

Correct Answer: D

Rationale: The correct answer is D, "in the auditorium." This phrase is misplaced because it should come immediately after "presentation" for clarity. The sentence should read, "At a presentation in the auditorium, he informed us about the dangers of drugs and alcohol." The other choices are not misplaced as they are all positioned correctly in the sentence and contribute to the overall meaning.

Correct Answer: A

Rationale: The correct answer is A: volunteered. In the sentence, "the first time she volunteered at the hospital," the verb should be in the past tense to match "the first time." "Volunteered" is the correct past tense form of the verb "volunteer" in this context. Choice B: volunteering is in the present participle form and does not fit the past tense requirement. Choice C: was volunteered is in the passive voice and does not make sense in the context of Cathy actively asking questions. Choice D: volunteer is in the base form and does not match the past tense needed in the sentence.

Correct Answer: B

Rationale: The correct answer is B: subscribes. In the sentence, "One out of four doctors" is the subject, which is singular. Therefore, the verb should also be singular to match, making "subscribes" the correct form. Choice A, subscribe, is incorrect because it is the plural form. Choice C, subscribing, is incorrect as it is a present participle and does not match the subject. Choice D, are subscribed, is incorrect as it is in the plural form and passive voice, which does not fit the sentence structure.