Which sentence uses commas correctly?

My sister, who lives in Denver loves hiking skiing and camping.

My sister, who lives in Denver, loves hiking, skiing, and camping.

My sister who lives in Denver, loves hiking, skiing, and camping.

My sister, who lives in Denver, loves hiking skiing, and camping.

Read the paragraph below and answer the question that follows. "Volunteering at the community center taught Marcus several valuable life skills. He learned to communicate effectively with people of all ages, to manage his time wisely during busy event days, and coordinating large groups of volunteers with patience. These experiences, in turn, prepared him well for his college coursework. In addition, the relationships he formed there lasting well beyond his volunteer term." Which of the following BEST describes ALL the grammatical errors present in the paragraph?

One instance of faulty parallelism and one sentence fragment

One run-on sentence and one dangling modifier

Two sentence fragments and no other errors

One instance of faulty parallelism and one misplaced modifier

Which sentence contains an error in pronoun-antecedent agreement?

Maria and Jen submitted her report late.

Neither the instructor nor the students knew the answer.

The dog wagged its tail when it saw its owner.

Both of the applicants passed their entrance exams.

HESI Grammar Practice Questions — Free Sampler (2026)

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3 sample Grammar questions

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Question 1Punctuation and capitalization
Which sentence uses commas correctly?
- AMy sister, who lives in Denver loves hiking skiing and camping.
- BMy sister, who lives in Denver, loves hiking, skiing, and camping.
- CMy sister who lives in Denver, loves hiking, skiing, and camping.
- DMy sister, who lives in Denver, loves hiking skiing, and camping.
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Question 2Sentence structure: fragments, run-ons, modifiers, parallelism
Read the paragraph below and answer the question that follows. "Volunteering at the community center taught Marcus several valuable life skills. He learned to communicate effectively with people of all ages, to manage his time wisely during busy event days, and coordinating large groups of volunteers with patience. These experiences, in turn, prepared him well for his college coursework. In addition, the relationships he formed there lasting well beyond his volunteer term." Which of the following BEST describes ALL the grammatical errors present in the paragraph?
- AOne instance of faulty parallelism and one sentence fragment
- BOne run-on sentence and one dangling modifier
- CTwo sentence fragments and no other errors
- DOne instance of faulty parallelism and one misplaced modifier
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Question 3Subject-verb and pronoun-antecedent agreement
Which sentence contains an error in pronoun-antecedent agreement?
- AMaria and Jen submitted her report late.
- BNeither the instructor nor the students knew the answer.
- CThe dog wagged its tail when it saw its owner.
- DBoth of the applicants passed their entrance exams.
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