ACT English : Correcting Grammatical Errors

Study concepts, example questions & explanations for ACT English

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Example Questions

Example Question #1111 : Correcting Grammatical Errors

The student the hand of whom was up (1) gave the wrong answer. She was asked what was a substantive adjective (2), and she answered that a substantive adjective is one that describe (3) a substance. "No!" (4) the teacher barked. "A substantive adjective takes the place of a noun in a sentence, as when someone talks about the rich and the poor (5). Did you learn nothing in this class?" He then asked what a superlative adjective was, to which she replied (6) that a superlative adjective was one that took the place of a noun in a sentence. "But thats (7) what I just said," the teacher screamed! (8) The student had said (9) that she had heard him, therefore (10) she answered his question. "You answered my question previously, (11)" he bellowed, "not the last one!" "Ah, you mean the latest one," the student replied, the moment at which (12) the teacher turned to the wall and started beating his head against it.

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

says

NO CHANGE

was saying

said

Correct answer:

said

Explanation:

The simple past tense, "said," is appropriate here since the student is reporting in the past what she heard in the recent past (hence the "had heard" that follows).

Example Question #41 : Verb Formation Errors

John was realizing (1) that if he ever wanted to get any work done (2) he needed to turn off his phone. Putting it on vibrate was not going to be enough (3). If it weren't (4) a message from a disgruntled student or an update to an app, it would be (5) a call from a relative or from a creditor. He has only recently realized (6) how ironic it is that "creditor" rhymes with "predator." (7) When the phone is on vibrate, he could feel it (8) from across the room which (9) makes it difficult for him to ignore it. Eventually he instituted a rule by which (10) he would only turn the phone on during certain hours of the day. At night he would turn it completely off, and he caught up (11) with his messages at lunchtime or dinnertime, but only if he were dining (12) alone. After that, he felt a little bit happier—but only a little bit.

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

is realizing

realized

had realized

NO CHANGE

Correct answer:

realized

Explanation:

The passage is mostly written in past tense, so John's realization is an action that took place in the past and is not continuing; therefore, "realized" is the best choice.

Example Question #42 : Verb Formation Errors

John was realizing (1) that if he ever wanted to get any work done (2) he needed to turn off his phone. Putting it on vibrate was not going to be enough (3). If it weren't (4) a message from a disgruntled student or an update to an app, it would be (5) a call from a relative or from a creditor. He has only recently realized (6) how ironic it is that "creditor" rhymes with "predator." (7) When the phone is on vibrate, he could feel it (8) from across the room which (9) makes it difficult for him to ignore it. Eventually he instituted a rule by which (10) he would only turn the phone on during certain hours of the day. At night he would turn it completely off, and he caught up (11) with his messages at lunchtime or dinnertime, but only if he were dining (12) alone. After that, he felt a little bit happier—but only a little bit.

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

wasn't

had not been

NO CHANGE

were not

Correct answer:

wasn't

Explanation:

"Wasn't" works best here, because it describes something in the past that actually happened, not something conditional such as "weren't" would describe.

Example Question #43 : Verb Formation Errors

John was realizing (1) that if he ever wanted to get any work done (2) he needed to turn off his phone. Putting it on vibrate was not going to be enough (3). If it weren't (4) a message from a disgruntled student or an update to an app, it would be (5) a call from a relative or from a creditor. He has only recently realized (6) how ironic it is that "creditor" rhymes with "predator." (7) When the phone is on vibrate, he could feel it (8) from across the room which (9) makes it difficult for him to ignore it. Eventually he instituted a rule by which (10) he would only turn the phone on during certain hours of the day. At night he would turn it completely off, and he caught up (11) with his messages at lunchtime or dinnertime, but only if he were dining (12) alone. After that, he felt a little bit happier—but only a little bit.

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

were

would have been

NO CHANGE

was

Correct answer:

was

Explanation:

To parallel the verb tense in the phrase before it, this verb needs to be simple past tense; "was" is most appropriate.

Example Question #64 : Usage Errors

John was realizing (1) that if he ever wanted to get any work done (2) he needed to turn off his phone. Putting it on vibrate was not going to be enough (3). If it weren't (4) a message from a disgruntled student or an update to an app, it would be (5) a call from a relative or from a creditor. He has only recently realized (6) how ironic it is that "creditor" rhymes with "predator." (7) When the phone is on vibrate, he could feel it (8) from across the room which (9) makes it difficult for him to ignore it. Eventually he instituted a rule by which (10) he would only turn the phone on during certain hours of the day. At night he would turn it completely off, and he caught up (11) with his messages at lunchtime or dinnertime, but only if he were dining (12) alone. After that, he felt a little bit happier—but only a little bit.

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

had only realized recently

has only realized recently

had only recently realized

NO CHANGE

Correct answer:

had only realized recently

Explanation:

The verb phrase "had realized" needs to be used here, because the realization is taking place in the past of another past action; "recently" must be moved to the end of the phrase to avoid a split infinitive.

Example Question #61 : Usage Errors

John was realizing (1) that if he ever wanted to get any work done (2) he needed to turn off his phone. Putting it on vibrate was not going to be enough (3). If it weren't (4) a message from a disgruntled student or an update to an app, it would be (5) a call from a relative or from a creditor. He has only recently realized (6) how ironic it is that "creditor" rhymes with "predator." (7) When the phone is on vibrate, he could feel it (8) from across the room which (9) makes it difficult for him to ignore it. Eventually he instituted a rule by which (10) he would only turn the phone on during certain hours of the day. At night he would turn it completely off, and he caught up (11) with his messages at lunchtime or dinnertime, but only if he were dining (12) alone. After that, he felt a little bit happier—but only a little bit.

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

NO CHANGE

he was feeling it

he can feel it

he could have felt it

Correct answer:

he can feel it

Explanation:

This sentence shifts to present tense to describe an action that could still occur, so the phrase "he can feel it" is most appropriate.

Example Question #22 : Verb Tense Errors

The Wowzer 25 (or W25) was regarded to be the best (1) video game system of all time when it came out. Wowzer released the Wowzer 25 in America during the year 1996 (2) as a follow-up to their last system, the Superduper Wowzer that (3) was released (4) in America five years before. The W25 derives its name from its resolution being 25-bit (5) which is something no other console had done before. (6) With 25-bit resolution, a player could finally roam a 3-D world with Wowzer’s mascot WowMan. Being able to play in a 3-D world was groundbreaking; it was an experience gamers at the time would not forget. (7) The W25’s graphics were good and then became even better after Wowzer had released (8) an expansion pack that increased the W25’s RAM from 4 megabytes to 8. (9) As the console grew, the graphics were becoming (10) better and better since (11) developers became more comfortable developing their games for it. (12)

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

have been released

was being released

NO CHANGE

had been released

Correct answer:

had been released

Explanation:

The release of the older system occurs before the past event of the release of the latest system, and thus the past perfect tense ("had been released") is appropriate.

Example Question #71 : Usage Errors

The Wowzer 25 (or W25) was regarded to be the best (1) video game system of all time when it came out. Wowzer released the Wowzer 25 in America during the year 1996 (2) as a follow-up to their last system, the Superduper Wowzer that (3) was released (4) in America five years before. The W25 derives its name from its resolution being 25-bit (5) which is something no other console had done before. (6) With 25-bit resolution, a player could finally roam a 3-D world with Wowzer’s mascot WowMan. Being able to play in a 3-D world was groundbreaking; it was an experience gamers at the time would not forget. (7) The W25’s graphics were good and then became even better after Wowzer had released (8) an expansion pack that increased the W25’s RAM from 4 megabytes to 8. (9) As the console grew, the graphics were becoming (10) better and better since (11) developers became more comfortable developing their games for it. (12)

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

were releasing

released

has released

NO CHANGED

Correct answer:

released

Explanation:

The sentence describes a single event that occurred in the past, so the appropriate verb is "released."

Example Question #72 : Usage Errors

The Wowzer 25 (or W25) was regarded to be the best (1) video game system of all time when it came out. Wowzer released the Wowzer 25 in America during the year 1996 (2) as a follow-up to their last system, the Superduper Wowzer that (3) was released (4) in America five years before. The W25 derives its name from its resolution being 25-bit (5) which is something no other console had done before. (6) With 25-bit resolution, a player could finally roam a 3-D world with Wowzer’s mascot WowMan. Being able to play in a 3-D world was groundbreaking; it was an experience gamers at the time would not forget. (7) The W25’s graphics were good and then became even better after Wowzer had released (8) an expansion pack that increased the W25’s RAM from 4 megabytes to 8. (9) As the console grew, the graphics were becoming (10) better and better since (11) developers became more comfortable developing their games for it. (12)

Choose from the following four options the answer that best corrects the underlined mistake preceding the question number. If there is no mistake or the original text is the best option, choose "NO CHANGE."

Possible Answers:

became

would become

NO CHANGE

had become

Correct answer:

became

Explanation:

To parallel the verb tense of "grew," the verb tense in this part of the sentence should be "became."

Example Question #73 : Usage Errors

Adapted from "The Ephemera: An Emblem of Human Life" by Benjamin Franklin (1778)

You may remember, my dear friend, that when we lately spent that happy day in the delightful garden and sweet society of the Moulin Joly, I stopped a little in one of our walks, and stay some time behind the company. We had been shown numberless skeletons of a kind of little fly, called an ephemera, whose successive generations, we were told, were bred and expired within the day. I happened to see a living company of them on a leaf, who appeared to be engaged in conversation. You know I understand all the inferior animal tongues. My too great application to the study of them is the best excuse I can give for the little progress I have made in your charming language. I listened through curiosity to the discourse of these little creatures; but as they, in their national vivacity, spoke three or four together, I could make but little of their conversation. I found however by some broken expressions that I heard now and then, they were disputing warmly on the merit of two foreign musicians, one a "cousin," the other a "moscheto": in which dispute they spent their time, seemingly as regardless of the shortness of life as if they had been sure of living a month. Happy people! thought I; you are certainly under a wise just and mild government, since you have no public grievances to complain of, nor any subject of contention but the perfections and imperfections of foreign music. I turned my head from them to an old gray-headed one, who was single on another leaf, and talking to himself. Being amused with his soliloquy, I put it down in writing, in hopes it will likewise amuse her to who I am so much indebted for the most pleasing of all amusements, her delicious company and heavenly harmony.

Which is the best form of the underlined section "walks, and stay"?

Possible Answers:

NO CHANGE

walks, and stayed

walks: and stay

walks; and stay

Correct answer:

walks, and stayed

Explanation:

The rest of the sentence uses past tense verbs like "spent" and "stopped" to describe the visit, so "stay," a present tense verb, is incorrect. "Stay" needs to be changed to the past tense "stayed" to match the tense of the other verbs in the sentence describing the visit. So, "walks, and stayed" is the correct answer.

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