ACT English : Correcting Grammatical Errors

Study concepts, example questions & explanations for ACT English

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Example Questions

Example Question #1 : Correcting Parallel Structure Errors

In the following question, please choose the best sentence improvement.

When choosing a sport, youths are encouraged to consider its difficulty, its required skills, its necessary equipment, and its overall cost.

Possible Answers:

the cost of it.

the money needed for it.

its overall cost.

how much it costs overall.

if it costs money.

Correct answer:

its overall cost.

Explanation:

In this question, only the original sentence shows parallelism. Any choice other than "its overall cost" would not exhibit parallel structure with the sentence's other elements.

Example Question #21 : Correcting Phrase, Clause, And Sentence Errors

The teacher sought new ways of teaching, believing her students would get more from lessons featuring playing, acting, and creativity.

Possible Answers:

featuring the playing, acting, and creativity.

featuring playing, acting, and creating.

featuring playing, acting, and creative things. 

featuring play, act, and creativity.

featuring playing, acting, and creativity.

Correct answer:

featuring playing, acting, and creating.

Explanation:

The underlined portion of the sentence features a list of verbs, but they are not all in a parallel form. All such lists must feature a parallel structure for the verbs listed; therefore, the correct answer is "featuring playing, acting, and creating."

Example Question #2 : Correcting Parallel Structure Errors

Stretching before physical workouts is important to improve flexibility and avoiding injury.

Possible Answers:

is important to both improve flexibility and also avoid injury.

are important to improve flexibility and avoiding injury.

is important to improve flexibility and in the avoidance of injury.

is important to improve flexibility and being injured less.

is important to improve flexibility and avoid injury.

Correct answer:

is important to improve flexibility and avoid injury.

Explanation:

Paralellism:  in a list of two or more items in a sentence, each should be worded in the same manner for consistency. One choice changes "is" to "are," which is incorrect because the subject is the singular "stretching," not the plural "workouts," which is part of a prepositional phrase.

Example Question #1 : Correcting Parallel Structure Errors

Writing an additional sentence for each paragraph you have is easier than the writing of a brand new paragraph altogether.

Possible Answers:

one's writing of

writing

when one has to write

the writing of

when you must write

Correct answer:

writing

Explanation:

It is not a parallel comparison. The comparison should match, and state that writing something is easier than writing something.

Example Question #1 : Correcting Other Phrase, Clause, And Sentence Errors

More than other children, he struggled adapting to middle school both academically and in his social life.

Possible Answers:

both for academics and in socially.

academics and in his social life.

both academically and socially.

both academcially and in his social life.

academically and in his social life.

Correct answer:

both academically and socially.

Explanation:

The two items in the underlined portion are paried together, and as such should have a parallel structure. The only answer choice that has such a structure is "both academically and socially."

Example Question #1 : Correcting Other Phrase, Clause, And Sentence Errors

She loved a number of creative activities as a child, always trying painting, singing, or to dance.

Possible Answers:

always trying to paint, to sing, or to dance.

always tries painting, singing, or to dance.

always trying painting, singing, or to dance.

always painting, singing, or to dance.

always try to paint, to sing, or to dance.

Correct answer:

always trying to paint, to sing, or to dance.

Explanation:

The list in the underlined portion needs a parallel structure in its items, but does not, with "to dance" being different in structure. Of all the answer choices, "always trying to paint, to sing, or to dance" features a correct parallel structure.

Example Question #1 : Correcting Parallel Structure Errors

The entertainer viewed himself as a multifaceted performer who excelled at acting, singing, and an ability to dance.

Possible Answers:

at acting, singing, and an ability to dance.

at acting, singing, and to dance.

at acting, singing, and dancing.

in acting, singing, and an ability to dance.

at acting, singing, and the ability to dance.

Correct answer:

at acting, singing, and dancing.

Explanation:

The list in the underlined portion of the sentence does not feature a parallel structure among the listed items, which makes it confusing and strange. The list needs to have a parallel structure, with all elements featuring the same form. The only answer choice with a parallel structure is "at acting, singing, and dancing."

Example Question #2 : Correcting Parallel Structure Errors

Young children need equal time during the day to devote to playing, learning, and to relax.

Possible Answers:

to playing, learning, to relax.

to playing, to learning, and to relax.

to playing, learning, and relax.

to play, to learn, and to relax.

to playing, learning, and to relax.

Correct answer:

to play, to learn, and to relax.

Explanation:

The list of verbs in the underlined portion of the sentence, as in any such list, all need to follow a parallel form. In the sentence as written, they do not have a parallel structure. Of all the answer choices, the only that does have a parallel structure is "to play, to learn, and to relax."

Example Question #11 : Correcting Parallel Structure Errors

Very few professional athletes are in the top percentile for running, jumping, and the ability to throw.

Possible Answers:

for running, jumping, and the ability to throw.

for running jumping and the ability to throw.

for running, jumping, and throwing.

for the abilty in running, jumping, and to throw.

for running jumping and throwing.

Correct answer:

for running, jumping, and throwing.

Explanation:

The list at the end of the sentence features different verb forms. Any list of such verbs all need to take the same form for a parallel structure; therefore, the correct answer is "for running, jumping, and throwing."

Example Question #21 : Correcting Phrase, Clause, And Sentence Errors

The boys all enjoyed swimming, hiking, and to run on the camp's property.

Possible Answers:

to swim, to hike, and to run on the camp's property.

swimming, to hike, and to run on the camp's property.

to swimming, to hiking, and to running on the camp's property.

swimming, hiking, and to run on the camp's property.

to swim, hiking, and to run on the camp's property.

Correct answer:

to swim, to hike, and to run on the camp's property.

Explanation:

The three activities in the list all need to have a parallel structure, and be grammatically correct, ruling out the answer choice featuring the construction "to running . . ." The best answer choice, therefore, is "to swim, to hike, and to run on the camp's property."

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