Explanation

• “Each” is singular, so it should be followed by a singular verb.
• “Were” (plural) is incorrect here.
• Correct sentence: Each of the participants was given an appreciation certificate.

Last verified on 10-02-2026

Explanation

• After “should”, the base form of the verb must be used.
• “Respected” is the past tense, which is incorrect here.
• Correct sentence: You should respect your elders.

Last verified on 10-02-2026

Explanation

• We do not use “at” with “every Sunday.”
• Correct structure: every + day/time → no preposition needed.
• So “at” is incorrect and should be removed.
• Correct sentence: I go to the library every Sunday.

Last verified on 10-02-2026

Explanation

• Sentence mixes past perfect (“had already left”) with present tense (“reach”).
• Correct tense for past context: reached
• Correct sentence: As soon as they reached the station, the train had already left.

Last verified on 09-02-2026

Explanation

• “Write” is present tense, but the sentence is in past tense: “were …”
• Correct past participle of write = written
• Correct sentence: The letters were written to the higher management.

Last verified on 09-02-2026

Explanation

• “Has sold” is present perfect tense, used for actions without a specific past time.
• “Last year” indicates a specific past time, so we should use simple past tense: sold.
• Correct sentence: He sold his new house last year.

Last verified on 09-02-2026

Explanation

• Since is used with a specific point in time (e.g., since 9 AM, since Monday).
• For is used with a duration of time (e.g., for three hours, for two days).
• Correct sentence: The students have been waiting for the teacher for three hours.

Last verified on 09-02-2026

Explanation

• Subject = A book of five hundred pages → singular subject.
• With singular subject we use “is”, not “are.”
• Correct sentence: A book of five hundred pages is difficult to read.
• “Of five hundred pages” is just a describing phrase, not the subject.

Explanation

• The sentence: “I prefer walking than going to gym.”
• The verb “prefer” is followed by “to”, not “than.”
• Correct structure: prefer [doing something] to [doing something]

Last verified on 08-02-2026

Explanation

• The sentence: “Oxford University is one of the best university in the world.”
• The phrase “one of the best” must be followed by a plural noun.
• “University” is singular; it should be “universities.”

Last verified on 08-02-2026