Sentence & Error Correction

15 questions available

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All Error Detection 21 Sentence Correction 46 Sentence Improvement 15 Fill in the Blanks 713 Sentence Completion 138
Showing 1–15 of 15

Q1.Improve: "He is working since morning."

Medium
A He has been working since morning.
B He worked since morning.
C He works since morning.
D No improvement needed.
Sentence Improvement CSS

Correct Answer: A

For actions continuing since a point in time, use present perfect continuous.

Q2.Improve: "I am knowing the answer."

Medium
A I know the answer.
B I am known the answer.
C I was knowing the answer.
D No improvement needed.
Sentence Improvement PPSC

Correct Answer: A

"Know" is a stative verb; do not use in continuous tense.

Q3.Improve: "She could not help but to cry."

Hard
A She could not help crying.
B She could not help but cried.
C She could not help to cry.
D No improvement needed.
Sentence Improvement PMS

Correct Answer: A

"Cannot help + V-ing" is the correct construction.

Q4.Improve: "He is more better than his brother."

Easy
A He is the better than his brother.
B He is better than his brother.
C He is much more better.
D No improvement needed.
Sentence Improvement CSS

Correct Answer: B

"More better" is redundant; just "better" suffices.

Q5.Improve: "The work has been completed in time."

Medium
A The work was completed on time.
B The work has been completed in time.
C The work had been completed on time.
D No improvement needed.
Sentence Improvement PPSC

Correct Answer: A

"On time" means punctually; "in time" means before it's too late. "On time" is more appropriate here.

Q6.Improve: "He plays football good."

Easy
A He plays football goodly.
B He plays football well.
C He plays football nice.
D No improvement needed.
Sentence Improvement CSS

Correct Answer: B

Adverb "well" (not adjective "good") modifies the verb "plays".

Q7.Improve: "Please provide me informations."

Easy
A Please provide me information.
B Please provide me some informations.
C Please provide me an information.
D No improvement needed.
Sentence Improvement PMS

Correct Answer: A

"Information" is uncountable and has no plural form.

Q8.Improve: "They discussed about the issue."

Medium
A They discussed the issue.
B They had discussed about the issue.
C They were discussing about the issue.
D No improvement needed.
Sentence Improvement PPSC

Correct Answer: A

"Discuss" is transitive and does not require "about".

Q9.Improve: "He entered into the room."

Easy
A He entered to the room.
B He entered the room.
C He entered in the room.
D No improvement needed.
Sentence Improvement CSS

Correct Answer: B

"Enter" does not require "into"; "entered the room" is correct.

Q10.Improve: "She has a lot of knowledges."

Easy
A She has a lot of knowledge.
B She has many knowledges.
C She has lots of knowledge items.
D No improvement needed.
Sentence Improvement PMS

Correct Answer: A

"Knowledge" is an uncountable noun.

Q11.Improve: "He did a mistake in the test."

Easy
A He made a mistake in the test.
B He committed a mistake in the test.
C He had a mistake in the test.
D No improvement.
Sentence Improvement PPSC

Correct Answer: A

"Make a mistake" is the correct collocation, not "do a mistake".

Q12.Improve: "She has cooked the food since two hours."

Medium
A She has been cooking the food for two hours.
B She cooked the food since two hours.
C She has cooked food for two hours.
D No improvement.
Sentence Improvement CSS

Correct Answer: A

Duration uses "for", and action still in progress uses present perfect continuous.

Q13.Identify the sentence with correct punctuation usage:

Hard
A My favorite hobbies include reading knitting and cooking.
B It's raining outside, however, I brought my umbrella.
C The concert was amazing - I've never heard such talented musicians.
D The professor's lecture was long; therefore it was informative.
Sentence Improvement CSS 2026

Correct Answer: C

Option (c) correctly uses a dash to set off an emphatic clause without punctuation errors.

Q14.Identify the sentence with the correct use of the colon:

Hard
A I have three goals for the year, lose weight, save money and travel more.
B The ingredients for the cake are: flour, sugar, eggs, and vanilla.
C She had one question: when is the deadline?
D He enjoys various outdoor activities: such as hiking, camping.
Sentence Improvement CSS 2026

Correct Answer: C

Option (c) correctly uses a colon to introduce a direct question following a complete independent clause.

Q15.Choose the sentence with a semantic error:

Medium
A The herculean effort required to complete the task was undeniable.
B The cacophonous symphony of the city streets was oddly soothing.
C The scientist's groundbreaking discovery left the world in a state of awe.
D Her altruistic disposition was as clear as a cloudy day.
Sentence Improvement CSS 2024

Correct Answer: D

Correct answer is D: Her altruistic disposition was as clear as a cloudy day.