Medium ACT Grammar Practice Questions

Concept Explanation

Medium ACT Grammar Practice Questions focus on the application of standard English conventions, including punctuation, sentence structure, and rhetorical skills, within the context of the ACT English section.

To succeed on the English portion of the ACT, students must go beyond simple spelling and vocabulary. You need to understand how different clauses interact and how punctuation marks like semicolons, colons, and dashes function to clarify meaning. This level of ACT Prep requires a keen eye for redundancy, subject-verb agreement, and pronoun clarity. For instance, according to the Grammarly Handbook, a common mistake involves misplacing commas around non-essential clauses, a concept frequently tested at this difficulty level. You should also be prepared to handle ACT Sentence Structure Practice Questions that involve identifying fragments or run-on sentences. The goal is to ensure every sentence is grammatically sound, concise, and logically placed within the passage.

Solved Examples

1. Question: The team of researchers, led by Dr. Aris, (is / are) presenting the findings at the conference tomorrow.
   Solution:
   1. Identify the subject of the sentence. The subject is "team," which is a collective noun acting as a singular unit.
   2. Ignore the prepositional phrase "of researchers" and the participial phrase "led by Dr. Aris."
   3. Match the singular subject "team" with the singular verb "is."
   4. The correct sentence is: "The team... is presenting."
2. Question: Sarah wanted to go to the beach; however, it started to rain.
   Solution:
   1. Check if the two clauses are independent. "Sarah wanted to go to the beach" and "it started to rain" both have subjects and verbs and can stand alone.
   2. Identify the transition word "however." When a transition word connects two independent clauses, it should be preceded by a semicolon and followed by a comma.
   3. The punctuation used (semicolon + comma) is correct. This is a common pattern in ACT Semicolon Practice Questions.
3. Question: Neither the players nor the coach (was / were) happy with the referee's decision.
   Solution:
   1. Identify the correlative conjunction "Neither... nor."
   2. Apply the proximity rule: when using "neither/nor," the verb must agree with the subject closest to it.
   3. The closest subject is "coach," which is singular.
   4. Match "coach" with the singular verb "was."

Practice Questions

1. Although the hike was grueling, the view from the summit was spectacular; making the effort worthwhile.

2. The chef prepared a five-course meal, which included: seared scallops, roasted duck, and a chocolate torte.

3. Every one of the students in the advanced physics class have to complete a final project before May.

4. After hours of deliberation, the jury finally reached their verdict late Friday evening.

5. The novel was praised for its intricate plot, its vivid characters, and it had a surprising ending.

6. Scientists have discovered a new species of frog in the Amazon; and they believe it may be endangered.

7. To prepare for the marathon, a strict training schedule was followed by Marcus for six months.

8. The city council members, who were elected last November, meets once a week to discuss local issues.

9. Having finished the marathon, the water bottle was empty and discarded on the grass.

10. The museum's collection includes artifacts from ancient Egypt, Greece, and Rome; however, the most popular exhibit is the dinosaur hall.

Answers & Explanations

1. Answer: ...spectacular, making the effort worthwhile.
   Explanation: A semicolon must separate two independent clauses. "Making the effort worthwhile" is a dependent clause (a fragment), so a comma is required instead. This is a classic example of what you might find in ACT Comma Practice Questions.
2. Answer: ...included seared scallops, roasted duck, and a chocolate torte.
   Explanation: Colons should only follow a complete independent clause. "Which included" is not a complete thought. The colon should be removed entirely.
3. Answer: ...has to complete...
   Explanation: The subject is "Every one," which is singular. The phrase "of the students" is a prepositional phrase that does not change the subject's number. This is a core concept in ACT Subject Verb Agreement Practice Questions.
4. Answer: ...its verdict...
   Explanation: "Jury" is a collective noun. In American English, collective nouns are treated as singular units, so the singular pronoun "its" must be used instead of the plural "their." Check out ACT Pronoun Practice Questions for more on this.
5. Answer: ...and its surprising ending.
   Explanation: This is a parallelism error. The list contains two noun phrases ("its intricate plot," "its vivid characters"), so the third item should also be a noun phrase. See ACT Parallelism Practice Questions for similar drills.
6. Answer: ...in the Amazon, and they believe...
   Explanation: You cannot use a semicolon with a coordinating conjunction (FANBOYS) like "and" to join two independent clauses. Use either a comma with the conjunction or a semicolon without the conjunction.
7. Answer: ...Marcus followed a strict training schedule for six months.
   Explanation: The original sentence is in the passive voice. The ACT often prefers the active voice for clarity and conciseness.
8. Answer: ...meet once a week...
   Explanation: The subject is "members" (plural), not "council" (singular). The verb must be "meet" to agree with the plural subject.
9. Answer: After Marcus finished the marathon, he discarded the empty water bottle on the grass.
   Explanation: This is a dangling modifier. The phrase "Having finished the marathon" should describe Marcus, but it currently describes "the water bottle." You can find more examples in ACT Modifier Practice Questions.
10. Answer: Correct as written.
    Explanation: The semicolon correctly separates two independent clauses, and the transition word "however" is correctly followed by a comma.

1. Which of the following correctly punctuates the sentence?

• AThe weather was beautiful, consequently, we decided to eat outside.
• BThe weather was beautiful; consequently, we decided to eat outside.
• CThe weather was beautiful consequently we decided to eat outside.
• DThe weather was beautiful: consequently we decided to eat outside.

Frequently Asked Questions

How do I identify a comma splice on the ACT?

A comma splice occurs when two independent clauses are joined by only a comma without a coordinating conjunction. You can fix this by using a semicolon, a period, or adding a conjunction like "and" or "but."

When should I use a semicolon versus a colon?

Use a semicolon to join two related independent clauses that could stand as separate sentences. Use a colon to introduce a list, an explanation, or a quote, provided the preceding clause is independent.

What is the most common grammar rule tested on the ACT?

Subject-verb agreement and punctuation (specifically commas) are among the most frequently tested concepts. Students often struggle with prepositional phrases that separate the subject from the verb.

How does the ACT test redundancy?

Redundancy is tested by offering answer choices that repeat the same information in different words. The official ACT website emphasizes that the shortest, most direct answer is often the correct one if it maintains the sentence's meaning.

What is a dangling modifier?

A dangling modifier is a descriptive phrase that does not logically refer to the noun immediately following it. To fix it, ensure the subject of the main clause is the person or thing actually performing the action in the introductory phrase.